diff --git a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
index 4779b336..3728eed6 100644
--- a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
+++ b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
@@ -336,11 +336,17 @@ public class EstimateService {
               message.getMessage("common.message.required.data", "User ID"));
     }
 
+    List<ItemRequest> circuitItemList = estimateRequest.getCircuitItemList(); //drawingFlg != "1" 인 경우 (도면 없이 저장) circuitItemList는 비어있어도 정상
+    List<ItemRequest> itemList = estimateRequest.getItemList();
+
+    if (itemList == null || itemList.isEmpty()) {
+      throw new QcastException(ErrorCode.INVALID_INPUT_VALUE,
+              message.getMessage("common.message.required.data", "itemList"));
+    }
+
     String splitStr = "、";
     List<RoofRequest> orgRoofList = new ArrayList<RoofRequest>();
     List<RoofRequest> roofList = new ArrayList<RoofRequest>();
-    List<ItemRequest> circuitItemList = estimateRequest.getCircuitItemList();
-    List<ItemRequest> itemList = estimateRequest.getItemList();
 
     estimateRequest.setTempFlg("0");
 
diff --git a/src/main/java/com/interplug/qcast/biz/master/MasterController.java b/src/main/java/com/interplug/qcast/biz/master/MasterController.java
index 02f5a823..611d0540 100644
--- a/src/main/java/com/interplug/qcast/biz/master/MasterController.java
+++ b/src/main/java/com/interplug/qcast/biz/master/MasterController.java
@@ -12,6 +12,7 @@ import com.interplug.qcast.biz.master.dto.pcs.menualconf.ApiPcsMenualConfRequest
 import com.interplug.qcast.biz.master.dto.pcs.series.ApiPcsSeriesItemRequest;
 import com.interplug.qcast.biz.master.dto.pcs.series.ApiPcsSeriesItemResponse;
 import com.interplug.qcast.biz.master.dto.pcs.voltagestepup.ApiPcsVoltageStepUpResponse;
+import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationErrSaveRequest;
 import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationItemRequest;
 import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationItemResponse;
 import com.interplug.qcast.biz.master.dto.roofmaterial.ApiRoofMaterialResponse;
@@ -294,4 +295,11 @@ public class MasterController {
       HttpServletRequest request, @RequestBody ApiQuotationItemRequest quotationItemRequest) {
     return quotationService.getQuotationItem(request.getHeader("Referer"), quotationItemRequest);
   }
+
+  @Operation(description = "견적서 오류를 저장한다.")
+  @PostMapping("/quotationErrSave")
+  public ApiResponse<Void> quotationErrSave(
+      HttpServletRequest request, @RequestBody ApiQuotationErrSaveRequest quotationErrSaveRequest) {
+    return quotationService.quotationErrSave(request.getHeader("Referer"), quotationErrSaveRequest);
+  }
 }
diff --git a/src/main/java/com/interplug/qcast/biz/master/QuotationService.java b/src/main/java/com/interplug/qcast/biz/master/QuotationService.java
index 760fd039..386757ee 100644
--- a/src/main/java/com/interplug/qcast/biz/master/QuotationService.java
+++ b/src/main/java/com/interplug/qcast/biz/master/QuotationService.java
@@ -1,6 +1,7 @@
 package com.interplug.qcast.biz.master;
 
 import com.interplug.qcast.biz.master.dto.ApiResponse;
+import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationErrSaveRequest;
 import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationItemRequest;
 import com.interplug.qcast.biz.master.dto.quotation.ApiQuotationItemResponse;
 import java.util.List;
@@ -16,4 +17,9 @@ public interface QuotationService {
   @PostMapping("/item")
   public ApiResponse<List<ApiQuotationItemResponse>> getQuotationItem(
       @RequestHeader("Referer") String referer, @RequestBody ApiQuotationItemRequest req);
+
+  // 견적서 오류 저장
+  @PostMapping("/errSave")
+  public ApiResponse<Void> quotationErrSave(
+      @RequestHeader("Referer") String referer, @RequestBody ApiQuotationErrSaveRequest req);
 }