diff --git a/src/components/floor-plan/modal/outerlinesetting/OuterLineWall.jsx b/src/components/floor-plan/modal/outerlinesetting/OuterLineWall.jsx
index a44abb81..c5bd5686 100644
--- a/src/components/floor-plan/modal/outerlinesetting/OuterLineWall.jsx
+++ b/src/components/floor-plan/modal/outerlinesetting/OuterLineWall.jsx
@@ -1,6 +1,6 @@
 'use client'
 
-import { useEffect, useRef } from 'react'
+import { useCallback, useEffect, useRef } from 'react'
 import WithDraggable from '@/components/common/draggable/withDraggable'
 import { modalState } from '@/store/modalAtom'
 import { useRecoilState, useRecoilValue } from 'recoil'
@@ -22,7 +22,7 @@ import { useLine } from '@/hooks/useLine'
 export default function OuterLineWall() {
   const [modalOption, setModalOption] = useRecoilState(modalState) //modal 열림닫힘 state
   const { getMessage } = useMessage()
-  const { addCanvasMouseEventListener, addDocumentEventListener } = useEvent()
+  const { addCanvasMouseEventListener, addDocumentEventListener, removeAllDocumentEventListeners } = useEvent()
   const { addLineText, removeLineText } = useLine()
   const length1Ref = useRef(null)
   const length2Ref = useRef(null)
@@ -32,21 +32,35 @@ export default function OuterLineWall() {
   const [arrow2, setArrow2] = useRecoilState(outerLineArrow2State)
   const [points, setPoints] = useRecoilState(outerLinePointsState)
   const [type, setType] = useRecoilState(outerLineTypeState)
+  const arrow1Ref = useRef(arrow1)
+  const arrow2Ref = useRef(arrow2)
 
   const canvas = useRecoilValue(canvasState)
 
   useEffect(() => {
     addCanvasMouseEventListener('mouse:down', mouseDown)
-    addDocumentEventListener('keydown', document, keydown)
   }, [])
 
   useEffect(() => {
+    arrow1Ref.current = arrow1
+  }, [arrow1])
+
+  useEffect(() => {
+    arrow2Ref.current = arrow2
+  }, [arrow2])
+
+  useEffect(() => {
+    removeAllDocumentEventListeners()
+    addDocumentEventListener('keydown', document, keydown[type])
     clear()
   }, [type])
 
   const clear = () => {
     setLength1(0)
+    setLength2(0)
+
     setArrow1('')
+    setArrow2('')
   }
 
   const mouseDown = (e) => {
@@ -102,55 +116,206 @@ export default function OuterLineWall() {
     addLineText(line)
   }
 
-  const keydown = (e) => {
-    const key = e.key
+  // 직각 완료될 경우 확인
+  const checkRightAngle = () => {
+    const length1Num = Number(length1Ref.current.value) / 10
+    const length2Num = Number(length2Ref.current.value) / 10
+    console.log(length1Num, length2Num, arrow1Ref.current, arrow2Ref.current)
 
-    const lengthNum = Number(length1Ref.current.value) / 10
-    if (lengthNum === 0) {
+    if (points.length === 0) {
       return
     }
-    switch (key) {
-      case 'Down': // IE/Edge에서 사용되는 값
-      case 'ArrowDown':
-        setArrow1('↓')
-        setPoints((prev) => {
-          if (prev.length === 0) {
-            return []
-          }
-          return [...prev, { x: prev[prev.length - 1].x, y: prev[prev.length - 1].y + lengthNum }]
-        })
-        break
-      case 'Up': // IE/Edge에서 사용되는 값
-      case 'ArrowUp':
-        setArrow1('↑')
-        setPoints((prev) => {
-          if (prev.length === 0) {
-            return []
-          }
-          return [...prev, { x: prev[prev.length - 1].x, y: prev[prev.length - 1].y - lengthNum }]
-        })
-        break
-      case 'Left': // IE/Edge에서 사용되는 값
-      case 'ArrowLeft':
-        setArrow1('←')
-        setPoints((prev) => {
-          if (prev.length === 0) {
-            return []
-          }
-          return [...prev, { x: prev[prev.length - 1].x - lengthNum, y: prev[prev.length - 1].y }]
-        })
-        break
-      case 'Right': // IE/Edge에서 사용되는 값
-      case 'ArrowRight':
-        setArrow1('→')
-        setPoints((prev) => {
-          if (prev.length === 0) {
-            return []
-          }
-          return [...prev, { x: prev[prev.length - 1].x + lengthNum, y: prev[prev.length - 1].y }]
-        })
-        break
+
+    if (length1Num === 0 || length2Num === 0 || arrow1Ref.current === '' || arrow2Ref.current === '') {
+      return
     }
+
+    if (arrow1Ref.current === '↓' && arrow2Ref.current === '→') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x + length2Num, y: prev[prev.length - 1].y + length1Num }]
+      })
+    } else if (arrow1Ref.current === '↓' && arrow2Ref.current === '←') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x - length2Num, y: prev[prev.length - 1].y + length1Num }]
+      })
+    } else if (arrow1Ref.current === '↑' && arrow2Ref.current === '→') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x + length2Num, y: prev[prev.length - 1].y - length1Num }]
+      })
+    } else if (arrow1Ref.current === '↑' && arrow2Ref.current === '←') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x - length2Num, y: prev[prev.length - 1].y - length1Num }]
+      })
+    } else if (arrow1Ref.current === '→' && arrow2Ref.current === '↓') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x + length1Num, y: prev[prev.length - 1].y + length2Num }]
+      })
+    } else if (arrow1Ref.current === '→' && arrow2Ref.current === '↑') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x + length1Num, y: prev[prev.length - 1].y - length2Num }]
+      })
+    } else if (arrow1Ref.current === '←' && arrow2Ref.current === '↓') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x - length1Num, y: prev[prev.length - 1].y + length2Num }]
+      })
+    } else if (arrow1Ref.current === '←' && arrow2Ref.current === '↑') {
+      setPoints((prev) => {
+        if (prev.length === 0) {
+          return []
+        }
+        return [...prev, { x: prev[prev.length - 1].x - length1Num, y: prev[prev.length - 1].y - length2Num }]
+      })
+    }
+  }
+
+  const keydown = {
+    outerLine: (e) => {
+      const key = e.key
+
+      if (!length1Ref.current) {
+        return
+      }
+
+      const lengthNum = Number(length1Ref.current.value) / 10
+      if (lengthNum === 0) {
+        return
+      }
+      switch (key) {
+        case 'Down': // IE/Edge에서 사용되는 값
+        case 'ArrowDown': {
+          setArrow1('↓')
+          setPoints((prev) => {
+            if (prev.length === 0) {
+              return []
+            }
+            return [...prev, { x: prev[prev.length - 1].x, y: prev[prev.length - 1].y + lengthNum }]
+          })
+          break
+        }
+        case 'Up': // IE/Edge에서 사용되는 값
+        case 'ArrowUp':
+          setArrow1('↑')
+          setPoints((prev) => {
+            if (prev.length === 0) {
+              return []
+            }
+            return [...prev, { x: prev[prev.length - 1].x, y: prev[prev.length - 1].y - lengthNum }]
+          })
+          break
+        case 'Left': // IE/Edge에서 사용되는 값
+        case 'ArrowLeft':
+          setArrow1('←')
+          setPoints((prev) => {
+            if (prev.length === 0) {
+              return []
+            }
+            return [...prev, { x: prev[prev.length - 1].x - lengthNum, y: prev[prev.length - 1].y }]
+          })
+          break
+        case 'Right': // IE/Edge에서 사용되는 값
+        case 'ArrowRight':
+          setArrow1('→')
+          setPoints((prev) => {
+            if (prev.length === 0) {
+              return []
+            }
+            return [...prev, { x: prev[prev.length - 1].x + lengthNum, y: prev[prev.length - 1].y }]
+          })
+          break
+      }
+    },
+    rightAngle: (e) => {
+      const key = e.key
+
+      const activeElem = document.activeElement
+      const length1Num = Number(length1Ref.current.value) / 10
+      const length2Num = Number(length2Ref.current.value) / 10
+
+      switch (key) {
+        case 'Down': // IE/Edge에서 사용되는 값
+        case 'ArrowDown': {
+          if (activeElem === length1Ref.current) {
+            setArrow1('↓')
+            arrow1Ref.current = '↓'
+          } else if (activeElem === length2Ref.current) {
+            if (arrow1Ref.current === '↓' || arrow1Ref.current === '↑') {
+              break
+            }
+            setArrow2('↓')
+            arrow2Ref.current = '↓'
+            checkRightAngle()
+          }
+
+          break
+        }
+        case 'Up': // IE/Edge에서 사용되는 값
+        case 'ArrowUp':
+          if (activeElem === length1Ref.current) {
+            setArrow1('↑')
+            arrow1Ref.current = '↑'
+          } else if (activeElem === length2Ref.current) {
+            if (arrow1Ref.current === '↓' || arrow1Ref.current === '↑') {
+              break
+            }
+            setArrow2('↑')
+            arrow2Ref.current = '↑'
+            checkRightAngle()
+          }
+
+          break
+        case 'Left': // IE/Edge에서 사용되는 값
+        case 'ArrowLeft':
+          if (activeElem === length1Ref.current) {
+            setArrow1('←')
+            arrow1Ref.current = '←'
+          } else if (activeElem === length2Ref.current) {
+            if (arrow1Ref.current === '←' || arrow1Ref.current === '→') {
+              break
+            }
+            setArrow2('←')
+            arrow2Ref.current = '←'
+            checkRightAngle()
+          }
+
+          break
+        case 'Right': // IE/Edge에서 사용되는 값
+        case 'ArrowRight':
+          if (activeElem === length1Ref.current) {
+            setArrow1('→')
+            arrow1Ref.current = '→'
+          } else if (activeElem === length2Ref.current) {
+            if (arrow1Ref.current === '←' || arrow1Ref.current === '→') {
+              break
+            }
+            setArrow2('→')
+            arrow2Ref.current = '→'
+            checkRightAngle()
+          }
+
+          break
+      }
+    },
   }
 
   /**
@@ -228,6 +393,43 @@ export default function OuterLineWall() {
                   <input type="text" value={arrow1} className="input-origin block" />
                 </div>
               </div>
+            ) : type === OUTER_LINE_TYPE.RIGHT_ANGLE ? (
+              <div className="outer-line-wrap">
+                <div className="form-input">
+                  <label htmlFor="">{getMessage('modal.cover.outline.length')}</label>
+                  <input
+                    type="text"
+                    className="input-origin block"
+                    value={length1}
+                    ref={length1Ref}
+                    onChange={(e) => {
+                      setLength1(e.target.value.replace(/[^-0-9]/g, ''))
+                    }}
+                    placeholder="3000"
+                  />
+                </div>
+                <div className="form-input">
+                  <label htmlFor="">{getMessage('modal.cover.outline.arrow')}</label>
+                  <input type="text" value={arrow1} className="input-origin block" />
+                </div>
+                <div className="form-input">
+                  <label htmlFor="">{getMessage('modal.cover.outline.length')}</label>
+                  <input
+                    type="text"
+                    className="input-origin block"
+                    value={length2}
+                    ref={length2Ref}
+                    onChange={(e) => {
+                      setLength2(e.target.value.replace(/[^-0-9]/g, ''))
+                    }}
+                    placeholder="3000"
+                  />
+                </div>
+                <div className="form-input">
+                  <label htmlFor="">{getMessage('modal.cover.outline.arrow')}</label>
+                  <input type="text" value={arrow2} className="input-origin block" />
+                </div>
+              </div>
             ) : (
               <></>
             )}