diff --git a/src/main/java/com/interplug/qcast/biz/estimate/EstimateMapper.java b/src/main/java/com/interplug/qcast/biz/estimate/EstimateMapper.java
index 2d5c137c..2097c5b2 100644
--- a/src/main/java/com/interplug/qcast/biz/estimate/EstimateMapper.java
+++ b/src/main/java/com/interplug/qcast/biz/estimate/EstimateMapper.java
@@ -122,4 +122,7 @@ public interface EstimateMapper {
 
   // Plan 확정 동기화
   public int updatePlanConfirmSync(PlanSyncResponse planSyncData);
+
+  // 견적서 Q.ORDER 연동 시공타입 조회
+  public String selectEstimateConstructSpecification(EstimateRequest estimateRequest);
 }
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 c7d0ba91..4f909227 100644
--- a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
+++ b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
@@ -1709,12 +1709,13 @@ public class EstimateService {
       if (estimateSendResponse == null) {
         throw new QcastException(ErrorCode.NOT_FOUND, message.getMessage("common.message.no.data"));
       } else {
+        String constructSpecification =
+            estimateMapper.selectEstimateConstructSpecification(estimateRequest);
+
         estimateSendResponse.setSaveType("3");
         estimateSendResponse.setSyncFlg("0");
         estimateSendResponse.setConstructSpecification(
-            !StringUtils.isEmpty(estimateSendResponse.getConstructSpecification())
-                ? estimateSendResponse.getConstructSpecification().split("、")[0]
-                : "");
+            !StringUtils.isEmpty(constructSpecification) ? constructSpecification : "");
         estimateSendResponse.setDelFlg("1".equals(estimateSendResponse.getDelFlg()) ? "Y" : "N");
 
         // 아이템 목록 조회
@@ -2182,12 +2183,13 @@ public class EstimateService {
       estimateRequest.setObjectNo(estimateSendResponse.getObjectNo());
       estimateRequest.setPlanNo(estimateSendResponse.getPlanNo());
 
+      String constructSpecification =
+          estimateMapper.selectEstimateConstructSpecification(estimateRequest);
+
       estimateSendResponse.setSaveType("3");
       estimateSendResponse.setSyncFlg("0");
       estimateSendResponse.setConstructSpecification(
-          !StringUtils.isEmpty(estimateSendResponse.getConstructSpecification())
-              ? estimateSendResponse.getConstructSpecification().split("、")[0]
-              : "");
+          !StringUtils.isEmpty(constructSpecification) ? constructSpecification : "");
       estimateSendResponse.setDelFlg("1".equals(estimateSendResponse.getDelFlg()) ? "Y" : "N");
 
       // 아이템 목록 조회
diff --git a/src/main/resources/mappers/estimate/estimateMapper.xml b/src/main/resources/mappers/estimate/estimateMapper.xml
index 171dce19..2936d96d 100644
--- a/src/main/resources/mappers/estimate/estimateMapper.xml
+++ b/src/main/resources/mappers/estimate/estimateMapper.xml
@@ -1205,4 +1205,25 @@
           AND PLAN_NO = #{planNo}
     </update>
 
+    <select id="selectEstimateConstructSpecification" parameterType="com.interplug.qcast.biz.estimate.dto.EstimateRequest" resultType="String">
+        /* sqlid : com.interplug.qcast.biz.estimate.selectEstimateConstructSpecification */
+        SELECT
+            TOP 1
+	        T.CONSTRUCT_SPECIFICATION
+        FROM (
+            SELECT
+                  PRE.CONSTRUCT_SPECIFICATION
+                , CASE WHEN LEFT(PRE.ROOF_SURFACE, 1) = '南' THEN 1
+                       WHEN LEFT(PRE.ROOF_SURFACE, 1) = '東' THEN 2
+                       WHEN LEFT(PRE.ROOF_SURFACE, 1) = '西' THEN 3
+                       WHEN LEFT(PRE.ROOF_SURFACE, 1) = '北' THEN 4
+                  ELSE 5 END ROOF_SURFACE_NUM
+                , (SELECT ISNULL(SUM(AMOUNT), 0) FROM T_PART_ROOF_ITEM_ESTIMATE WHERE ROOF_SURFACE_ID = PRE.ROOF_SURFACE_ID AND OBJECT_NO = PRE.OBJECT_NO AND PLAN_NO = PRE.PLAN_NO) AS MODULE_TCNT
+            FROM T_PART_ROOF_ESTIMATE PRE WITH (NOLOCK)
+            WHERE PRE.OBJECT_NO = #{objectNo}
+                AND PRE.PLAN_NO = #{planNo}
+        ) T
+        ORDER BY T.MODULE_TCNT DESC, T.ROOF_SURFACE_NUM ASC
+    </select>
+
 </mapper>
\ No newline at end of file