diff --git a/src/app/api/survey-sales/[id]/route.ts b/src/app/api/survey-sales/[id]/route.ts
index 288a8b6..025183d 100644
--- a/src/app/api/survey-sales/[id]/route.ts
+++ b/src/app/api/survey-sales/[id]/route.ts
@@ -1,20 +1,20 @@
 import { NextResponse } from 'next/server'
 
-export async function POST(request: Request, context: { params: { id: string } }) {
-  const body = await request.json()
-  const { id } = await context.params
+// export async function POST(request: Request, context: { params: { id: string } }) {
+//   const body = await request.json()
+//   const { id } = await context.params
 
-  // @ts-ignore
-  const survey = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
-    where: { id: Number(id) },
-    data: {
-      detail_info: {
-        create: body,
-      },
-    },
-  })
-  return NextResponse.json({ message: 'Survey detail created successfully' })
-}
+//   // @ts-ignore
+//   const survey = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
+//     where: { id: Number(id) },
+//     data: {
+//       detail_info: {
+//         create: body,
+//       },
+//     },
+//   })
+//   return NextResponse.json({ message: 'Survey detail created successfully' })
+// }
 
 export async function GET(request: Request, context: { params: { id: string } }) {
   const { id } = await context.params
@@ -80,12 +80,45 @@ export async function DELETE(request: Request, context: { params: { id: string }
 
 export async function PATCH(request: Request, context: { params: { id: string } }) {
   const { id } = await context.params
-  // @ts-ignore
-  const survey = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
-    where: { id: Number(id) },
-    data: {
-      submission_status: true,
-    },
-  })
-  return NextResponse.json({ message: 'Survey confirmed successfully' })
+  const body = await request.json()
+  if (body.submit) {
+    // @ts-ignore
+    const survey = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
+      where: { id: Number(id) },
+      data: {
+        submission_status: true,
+        submission_date: new Date(),
+      },
+    })
+    return NextResponse.json({ message: 'Survey confirmed successfully' })
+  } else {
+    // @ts-ignore
+    const hasDetails = await prisma.SD_SERVEY_SALES_DETAIL_INFO.findUnique({
+      where: { basic_info_id: Number(id) },
+    })
+    if (hasDetails) {
+      //@ts-ignore
+      const result = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
+        where: { id: Number(id) },
+        data: {
+          updated_at: new Date(),
+          detail_info: {
+            update: body.detail_info,
+          },
+        },
+      })
+      return NextResponse.json(result)
+    } else {
+      // @ts-ignore
+      const survey = await prisma.SD_SERVEY_SALES_BASIC_INFO.update({
+        where: { id: Number(id) },
+        data: {
+          detail_info: {
+            create: body.detail_info,
+          },
+        },
+      })
+      return NextResponse.json({ message: 'Survey detail created successfully' })
+    }
+  }
 }
diff --git a/src/components/survey-sale/detail/DetailForm.tsx b/src/components/survey-sale/detail/DetailForm.tsx
index 9ea07bf..f07b1d5 100644
--- a/src/components/survey-sale/detail/DetailForm.tsx
+++ b/src/components/survey-sale/detail/DetailForm.tsx
@@ -30,15 +30,19 @@ export default function DetailForm() {
     }
   }, [tab, setBasicInfoSelected, setRoofInfoSelected, surveyDetail])
 
-  console.log('isTemporary', isTemporary)
-  console.log('surveyDetail', surveyDetail)
   if (isLoadingSurveyDetail) {
     return <div>Loading...</div>
   }
 
   const handleSubmit = async () => {
+    if (isTemporary) {
+      alert('SAVE FIRST')
+      return
+    }
     if (confirm('submit?')) {
       if (surveyDetail?.id) {
+        // TODO: 제출 페이지 추가
+        alert('SUBMIT POPUP')
         await submitSurvey()
       }
     }
diff --git a/src/components/survey-sale/detail/form/BasicForm.tsx b/src/components/survey-sale/detail/form/BasicForm.tsx
index c60f2d6..971775f 100644
--- a/src/components/survey-sale/detail/form/BasicForm.tsx
+++ b/src/components/survey-sale/detail/form/BasicForm.tsx
@@ -10,7 +10,7 @@ const defaultBasicInfoForm: SurveyBasicRequest = {
   representative: '',
   store: null,
   construction_point: null,
-  investigation_date: null,
+  investigation_date: new Date().toLocaleDateString('en-CA'),
   building_name: null,
   customer_name: null,
   post_code: null,
@@ -138,7 +138,7 @@ export default function BasicForm() {
                 type="date"
                 className="date-frame"
                 id="investigation_date"
-                value={basicInfoData.investigation_date ?? new Date().toISOString().split('T')[0]}
+                value={basicInfoData.investigation_date ?? ''}
                 onChange={(e) => handleChange('investigation_date', e.target.value)}
               />
             </div>
diff --git a/src/components/survey-sale/detail/form/MultiCheckEtc.tsx b/src/components/survey-sale/detail/form/MultiCheckEtc.tsx
index d901df0..2ba0951 100644
--- a/src/components/survey-sale/detail/form/MultiCheckEtc.tsx
+++ b/src/components/survey-sale/detail/form/MultiCheckEtc.tsx
@@ -1,5 +1,5 @@
 import { SurveyDetailRequest } from '@/types/Survey'
-import { useState } from 'react'
+import { useEffect, useState } from 'react'
 
 const supplementary_facilities = [
   { id: 1, name: 'エコキュート' }, //에코큐트
@@ -29,11 +29,22 @@ export default function MultiCheckbox({
   const [isOtherChecked, setIsOtherChecked] = useState(false)
   const [otherValue, setOtherValue] = useState('')
 
-  const handleCheckbox = (dataIndex: number) => {
-    const value = String(detailInfoData[column as keyof SurveyDetailRequest] ?? '')
+  const makeNumArr = (value: string) => {
+    return value
       .split(',')
       .map((v) => v.trim())
       .filter((v) => v.length > 0)
+  }
+
+  useEffect(() => {
+    if (detailInfoData[`${column}_etc` as keyof SurveyDetailRequest]) {
+      setIsOtherChecked(true)
+      setOtherValue(detailInfoData[`${column}_etc` as keyof SurveyDetailRequest] as string)
+    }
+  }, [detailInfoData])
+
+  const handleCheckbox = (dataIndex: number) => {
+    const value = makeNumArr(String(detailInfoData[column as keyof SurveyDetailRequest] ?? ''))
 
     let newValue: string[]
     if (value.includes(String(dataIndex))) {
@@ -63,11 +74,7 @@ export default function MultiCheckbox({
 
   const handleOtherCheckbox = () => {
     if (column === 'roof_material') {
-      const value = String(detailInfoData[column as keyof SurveyDetailRequest] ?? '')
-        .split(',')
-        .map((v) => v.trim())
-        .filter((v) => v.length > 0)
-
+      const value = makeNumArr(String(detailInfoData[column as keyof SurveyDetailRequest] ?? ''))
       // 현재 선택된 항목 수
       const currentSelected = value.length
 
@@ -119,10 +126,7 @@ export default function MultiCheckbox({
             <input
               type="checkbox"
               id={`${column}_ch${item.id}`}
-              checked={String(detailInfoData[column as keyof SurveyDetailRequest] ?? '')
-                .split(',')
-                .map((v) => v.trim())
-                .includes(String(item.id))}
+              checked={makeNumArr(String(detailInfoData[column as keyof SurveyDetailRequest] ?? '')).includes(String(item.id))}
               onChange={() => handleCheckbox(item.id)}
             />
             <label htmlFor={`${column}_ch${item.id}`}>{item.name}</label>
diff --git a/src/components/survey-sale/detail/form/RadioEtc.tsx b/src/components/survey-sale/detail/form/RadioEtc.tsx
index 427995c..ebb6757 100644
--- a/src/components/survey-sale/detail/form/RadioEtc.tsx
+++ b/src/components/survey-sale/detail/form/RadioEtc.tsx
@@ -1,5 +1,5 @@
 'use client'
-import { useState } from 'react'
+import { useEffect, useState } from 'react'
 import { SurveyDetailRequest } from '@/types/Survey'
 
 type RadioEtcKeys = 'house_structure' | 'rafter_material' | 'waterproof_material' | 'insulation_presence'
@@ -58,6 +58,13 @@ export default function RadioEtc({
   const [isEtcSelected, setIsEtcSelected] = useState(false)
   const [etcValue, setEtcValue] = useState('')
 
+  useEffect(() => {
+    if (detailInfoData[`${column}_etc` as keyof SurveyDetailRequest]) {
+      setIsEtcSelected(true)
+      setEtcValue(detailInfoData[`${column}_etc` as keyof SurveyDetailRequest] as string)
+    }
+  }, [detailInfoData])
+
   const handleRadioChange = (e: React.ChangeEvent<HTMLInputElement>) => {
     const value = e.target.value
     if (column === 'insulation_presence') {
@@ -110,7 +117,7 @@ export default function RadioEtc({
       ))}
       {column !== 'insulation_presence' && (
         <div className="radio-form-box mb10">
-          <input type="radio" name={column} id={`${column}`} value="etc" onChange={handleRadioChange} />
+          <input type="radio" name={column} id={`${column}_etc`} value="etc" onChange={handleRadioChange} checked={isEtcSelected} />
           <label htmlFor={`${column}_etc`}>その他 (直接入力)</label>
         </div>
       )}
diff --git a/src/components/survey-sale/detail/form/RoofInfoForm.tsx b/src/components/survey-sale/detail/form/RoofInfoForm.tsx
index f535af0..7781b30 100644
--- a/src/components/survey-sale/detail/form/RoofInfoForm.tsx
+++ b/src/components/survey-sale/detail/form/RoofInfoForm.tsx
@@ -65,15 +65,26 @@ export default function RoofInfoForm() {
 
   useEffect(() => {
     if (surveyDetail?.detail_info) {
-      const { id, updated_at, created_at, ...rest } = surveyDetail.detail_info
+      const { id, updated_at, created_at, basic_info_id, ...rest } = surveyDetail.detail_info
       setDetailInfoData(rest)
     }
   }, [surveyDetail])
 
   const handleNumberInput = (key: keyof SurveyDetailRequest, value: number | string) => {
-    if (typeof value === 'string') {
-      const numberValue = value === '' ? null : Number(value)
-      setDetailInfoData({ ...detailInfoData, [key]: numberValue })
+    if (key === 'roof_slope' || key === 'open_field_plate_thickness') {
+      const stringValue = value.toString()
+      if (stringValue.length > 4) {
+        alert('over db size')
+        return
+      }
+      if (stringValue.includes('.')) {
+        const decimalPlaces = stringValue.split('.')[1].length
+        if (decimalPlaces > 1) {
+          alert('小数点以下1桁までしか許されません。')
+          return
+        }
+      }
+      setDetailInfoData({ ...detailInfoData, [key]: value.toString() })
     } else {
       setDetailInfoData({ ...detailInfoData, [key]: value })
     }
@@ -95,12 +106,22 @@ export default function RoofInfoForm() {
     })
   }
 
-  // TODO: 조사매물 저장 요구사항 정립 이후 수정 필요
   const handleSave = async () => {
     if (id) {
       const emptyField = validateSurveyDetail(detailInfoData)
       if (emptyField.trim() === '') {
-        createSurveyDetail({ surveyId: Number(id), surveyDetail: detailInfoData })
+        const updatedBasicInfoData = {
+          detail_info: detailInfoData,
+        }
+        try {
+          createSurveyDetail({
+            surveyId: Number(id),
+            surveyDetail: updatedBasicInfoData,
+          })
+        } catch (error) {
+          throw new Error('failed to create survey detail: ' + error)
+        }
+        alert('created successfully')
         router.push(`/survey-sale`)
       } else {
         alert(emptyField + ' is required')
@@ -126,10 +147,11 @@ export default function RoofInfoForm() {
             <div className="data-input-form-tit">電気契約容量</div>
             <div className="data-input mb5">
               <input
-                type="text"
+                type="number"
+                inputMode="decimal"
                 className="input-frame"
                 value={detailInfoData.contract_capacity?.split(' ')[0] ?? ''}
-                onChange={(e) => handleTextInput('contract_capacity', e.target.value)}
+                onChange={(e) => handleNumberInput('contract_capacity', e.target.value)}
               />
             </div>
             <div className="data-input">
@@ -138,7 +160,11 @@ export default function RoofInfoForm() {
                 name="contract_capacity_unit"
                 id="contract_capacity_unit"
                 onChange={(e) => handleUnitInput(e.target.value)}
+                value={detailInfoData.contract_capacity?.split(' ')[1] ?? ''}
               >
+                <option value="" hidden>
+                  選択してください
+                </option>
                 <option value="kVA">kVA</option>
                 <option value="A">A</option>
               </select>
@@ -179,10 +205,12 @@ export default function RoofInfoForm() {
             <div className="data-input-form-tit">屋根の斜面</div>
             <div className="data-input flex">
               <input
-                type="text"
+                type="number"
+                step={0.1}
+                inputMode="decimal"
                 className="input-frame"
                 value={detailInfoData.roof_slope ?? ''}
-                onChange={(e) => handleTextInput('roof_slope', e.target.value)}
+                onChange={(e) => handleNumberInput('roof_slope', e.target.value)}
               />
               <span>寸</span>
             </div>
@@ -205,7 +233,7 @@ export default function RoofInfoForm() {
                   name="rafter_direction"
                   id="rafter_direction_1"
                   value={1}
-                  onChange={(e) => handleNumberInput('rafter_direction', e.target.value)}
+                  onChange={(e) => handleNumberInput('rafter_direction', Number(e.target.value))}
                   checked={detailInfoData.rafter_direction === 1}
                 />
                 <label htmlFor="rafter_direction_1">垂直垂木</label>
@@ -216,7 +244,7 @@ export default function RoofInfoForm() {
                   name="rafter_direction"
                   id="rafter_direction_2"
                   value={2}
-                  onChange={(e) => handleNumberInput('rafter_direction', e.target.value)}
+                  onChange={(e) => handleNumberInput('rafter_direction', Number(e.target.value))}
                   checked={detailInfoData.rafter_direction === 2}
                 />
                 <label htmlFor="rafter_direction_2">水平垂木</label>
@@ -232,10 +260,12 @@ export default function RoofInfoForm() {
             </div>
             <div className="data-input flex">
               <input
-                type="text"
+                type="number"
+                step={0.1}
+                inputMode="decimal"
                 className="input-frame"
                 value={detailInfoData.open_field_plate_thickness ?? ''}
-                onChange={(e) => handleTextInput('open_field_plate_thickness', e.target.value)}
+                onChange={(e) => handleNumberInput('open_field_plate_thickness', e.target.value)}
               />
               <span>mm</span>
             </div>
diff --git a/src/components/survey-sale/detail/form/SelectBoxEtc.tsx b/src/components/survey-sale/detail/form/SelectBoxEtc.tsx
index c813ffb..40a570d 100644
--- a/src/components/survey-sale/detail/form/SelectBoxEtc.tsx
+++ b/src/components/survey-sale/detail/form/SelectBoxEtc.tsx
@@ -165,25 +165,28 @@ export default function SelectBoxForm({
   const [etcValue, setEtcValue] = useState('')
 
   useEffect(() => {
-    setEtcValue(detailInfoData[`${column}_etc`] ?? '')
-  }, [detailInfoData[`${column}_etc`]])
+    if (detailInfoData[`${column}_etc` as keyof SurveyDetailRequest]) {
+      setIsEtcSelected(true)
+      setEtcValue(detailInfoData[`${column}_etc` as keyof SurveyDetailRequest] as string)
+    }
+  }, [detailInfoData])
 
   const handleSelectChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
     const value = e.target.value
     if (column === 'installation_availability' || column === 'construction_year') {
-      setIsEtcSelected(value === '2') // 既築(2) 또는 未確認(2) 선택 시 input 활성화
+      setIsEtcSelected(value === '2') // 건축 연수 & 설치 가능 여부 컬럼 2번 선택 시 input 활성화
       setDetailInfoData({
         ...detailInfoData,
         [column]: Number(value),
       })
     } else if (value === 'etc') {
-      setIsEtcSelected(true)
+      setIsEtcSelected(true) // 기타 선택 시 input 활성화
       setDetailInfoData({
         ...detailInfoData,
         [column]: null,
       })
     } else {
-      setIsEtcSelected(false)
+      setIsEtcSelected(false) // 기타 선택 해제 시 input 비활성화
       setEtcValue('')
       setDetailInfoData({
         ...detailInfoData,
@@ -207,7 +210,19 @@ export default function SelectBoxForm({
       <div className="data-input-form-bx">
         <div className={font[column]}>{translateJapanese[column]}</div>
         <div className="data-input mb5">
-          <select className="select-form" name={column} id={column} onChange={handleSelectChange} value={detailInfoData[column] ?? ''}>
+          <select
+            className="select-form"
+            name={column}
+            id={column}
+            onChange={handleSelectChange}
+            value={
+              detailInfoData[column]
+                ? detailInfoData[column]
+                : detailInfoData[`${column}_etc`]
+                  ? 'etc'
+                  : ''
+            }
+          >
             <option value="" hidden>
               선택해주세요
             </option>
@@ -225,7 +240,13 @@ export default function SelectBoxForm({
             className="input-frame"
             value={etcValue ?? ''}
             onChange={handleEtcInputChange}
-            disabled={column === 'installation_availability' || column === 'construction_year' ? !Boolean(detailInfoData[column]) : !isEtcSelected}
+            disabled={
+              column === 'installation_availability'
+                ? !Boolean(detailInfoData[column])
+                : column === 'construction_year'
+                ? detailInfoData[column] !== 2 // 既築(2)가 아닐 때 비활성화
+                : !isEtcSelected
+            }
           />
         </div>
       </div>
diff --git a/src/types/Survey.ts b/src/types/Survey.ts
index 3d08fb5..528e904 100644
--- a/src/types/Survey.ts
+++ b/src/types/Survey.ts
@@ -1,3 +1,5 @@
+import { SEARCH_OPTIONS_ENUM, SEARCH_OPTIONS_PARTNERS_ENUM, SORT_OPTIONS_ENUM } from "@/store/surveyFilterStore"
+
 export type SurveyBasicInfo = {
   id: number
   representative: string
@@ -18,6 +20,7 @@ export type SurveyBasicInfo = {
 
 export type SurveyDetailInfo = {
   id: number
+  basic_info_id: number
   contract_capacity: string | null
   retail_company: string | null
   supplementary_facilities: string | null // number 배열
@@ -108,3 +111,7 @@ export type SurveyDetailRequest = {
   installation_availability_etc: string | null
   memo: string | null
 }
+
+export type SurveyDetailCoverRequest = {
+  detail_info: SurveyDetailRequest
+}