diff --git a/coolstore-partner-model/src/main/java/com/cool/store/request/SignFranchiseDecorationRequest.java b/coolstore-partner-model/src/main/java/com/cool/store/request/SignFranchiseDecorationRequest.java
new file mode 100644
index 000000000..6a72c424b
--- /dev/null
+++ b/coolstore-partner-model/src/main/java/com/cool/store/request/SignFranchiseDecorationRequest.java
@@ -0,0 +1,24 @@
+package com.cool.store.request;
+
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+/**
+ * <p>
+ * 加盟合同签约装修信息Request
+ * </p>
+ *
+ * @author wangff
+ * @since 2026/3/24
+ */
+@Data
+public class SignFranchiseDecorationRequest {
+    @ApiModelProperty("门店id")
+    private Long shopId;
+
+    @ApiModelProperty("装修设计要求，字典表decoration_requirement")
+    private String decorationRequirement;
+
+    @ApiModelProperty("特殊情况说明")
+    private String specialInstruction;
+}
diff --git a/coolstore-partner-service/src/main/java/com/cool/store/service/SignFranchiseService.java b/coolstore-partner-service/src/main/java/com/cool/store/service/SignFranchiseService.java
index 7f7c6d42d..8c919fbc7 100644
--- a/coolstore-partner-service/src/main/java/com/cool/store/service/SignFranchiseService.java
+++ b/coolstore-partner-service/src/main/java/com/cool/store/service/SignFranchiseService.java
@@ -24,6 +24,11 @@ public interface SignFranchiseService {
      */
     Boolean reSubmitSignFranchise(AddSignFranchiseRequest request, LoginUserInfo user);
 
+    /**
+     * 装修信息修改
+     */
+    Boolean decorationUpdate(SignFranchiseDecorationRequest request);
+
 
     AddSignFranchiseResponse getSignFranchise(Long shopId);
 
diff --git a/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java b/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
index 2d245ce6e..56b967b7e 100644
--- a/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
+++ b/coolstore-partner-service/src/main/java/com/cool/store/service/impl/SignFranchiseServiceImpl.java
@@ -379,6 +379,23 @@ public class SignFranchiseServiceImpl implements SignFranchiseService, AuditResu
         return Boolean.TRUE;
     }
 
+    @Override
+    public Boolean decorationUpdate(SignFranchiseDecorationRequest request) {
+        ShopInfoDO shopInfo = shopInfoDAO.getShopInfo(request.getShopId());
+        if (Objects.isNull(shopInfo)) {
+            throw new ServiceException(ErrorCodeEnum.SHOP_NOT_EXIST);
+        }
+        ShopStageInfoDO shopStageInfo = shopStageInfoDAO.getShopSubStageInfo(request.getShopId(), ShopSubStageEnum.SHOP_STAGE_9);
+        if (shopStageInfo.getShopSubStageStatus().equals(ShopSubStageStatusEnum.SHOP_SUB_STAGE_STATUS_91.getShopSubStageStatus())) {
+            throw new ServiceException(ErrorCodeEnum.SHOP_STAGE_NOT_OPERATE);
+        }
+        ShopInfoDO update = new ShopInfoDO();
+        update.setId(request.getShopId());
+        update.setDecorationRequirement(request.getDecorationRequirement());
+        update.setSpecialInstruction(request.getSpecialInstruction());
+        return shopInfoDAO.updateShopInfo(update) > 0;
+    }
+
     /**
      * 费用校验
      * @param request
diff --git a/coolstore-partner-web/src/main/java/com/cool/store/controller/webb/PCSignFranchiseController.java b/coolstore-partner-web/src/main/java/com/cool/store/controller/webb/PCSignFranchiseController.java
index 675ed6dca..f68552a42 100644
--- a/coolstore-partner-web/src/main/java/com/cool/store/controller/webb/PCSignFranchiseController.java
+++ b/coolstore-partner-web/src/main/java/com/cool/store/controller/webb/PCSignFranchiseController.java
@@ -6,10 +6,12 @@ import com.cool.store.context.LoginUserInfo;
 import com.cool.store.request.AddSignFranchiseRequest;
 import com.cool.store.request.AssignOperationConsultantRequest;
 import com.cool.store.request.AuditApproveRequest;
+import com.cool.store.request.SignFranchiseDecorationRequest;
 import com.cool.store.response.AddSignFranchiseResponse;
 import com.cool.store.response.ResponseResult;
 import com.cool.store.service.SignFranchiseService;
 import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiModelProperty;
 import io.swagger.annotations.ApiOperation;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
@@ -37,6 +39,12 @@ public class PCSignFranchiseController {
         return ResponseResult.success(signFranchiseService.reSubmitSignFranchise(request,user));
     }
 
+    @ApiOperation("修改装修信息")
+    @PostMapping("/decorationUpdate")
+    public ResponseResult<Boolean> decorationUpdate(@RequestBody @Validated SignFranchiseDecorationRequest request) {
+        return ResponseResult.success(signFranchiseService.decorationUpdate(request));
+    }
+
     @ApiOperation("加盟合同签约审核")
     @PostMapping("/audit/result")
     public ResponseResult<Boolean> auditSignFranchise(@RequestBody @Validated AuditApproveRequest request) {