diff --git a/controller/report.go b/controller/report.go
index ce13aa3..00a2165 100644
--- a/controller/report.go
+++ b/controller/report.go
@@ -29,6 +29,7 @@ func InitializeReportController(router *gin.Engine) {
 	router.GET("/report/:rid/maintenance", security.EnterpriseAuthorize, fetchWillDilutedFees)
 	router.POST("/report/:rid/maintenance", security.EnterpriseAuthorize, createTemporaryWillDilutedFee)
 	router.POST("/report/:rid/maintenance/import", security.EnterpriseAuthorize, importPredefinedMaintenanceFees)
+	router.PUT("/report/:rid/maintenance/:mid", security.EnterpriseAuthorize, modifyWillDilutedFee)
 }
 
 func ensureReportBelongs(c *gin.Context, result *response.Result, requestReportId string) bool {
@@ -297,3 +298,27 @@ func importPredefinedMaintenanceFees(c *gin.Context) {
 	}
 	result.Created("预定义的配电维护费已经导入。")
 }
+
+type DilutedFeeModificationFormData struct {
+	Name *string         `json:"name,omitempty" form:"name"`
+	Fee  decimal.Decimal `json:"fee" form:"fee"`
+	Memo *string         `json:"memo,omitempty" form:"memo"`
+}
+
+func modifyWillDilutedFee(c *gin.Context) {
+	result := response.NewResult(c)
+	requestReportId := c.Param("rid")
+	if !ensureReportBelongs(c, result, requestReportId) {
+		return
+	}
+	requestFeeId := c.Param("mid")
+	formData := new(DilutedFeeModificationFormData)
+	c.BindJSON(formData)
+	updateValues := tools.ConvertStructToMap(formData)
+	err := service.ReportService.UpdateMaintenanceFee(requestFeeId, updateValues)
+	if err != nil {
+		result.Error(http.StatusInternalServerError, err.Error())
+		return
+	}
+	result.Updated("指定待摊薄费用信息已经更新。")
+}
diff --git a/service/report.go b/service/report.go
index b39d1d2..00d823e 100644
--- a/service/report.go
+++ b/service/report.go
@@ -237,3 +237,8 @@ func (_ReportService) BatchSaveMaintenanceFee(fees []model.WillDilutedFee) error
 	}
 	return nil
 }
+
+func (_ReportService) UpdateMaintenanceFee(feeId string, updates map[string]interface{}) (err error) {
+	_, err = global.DBConn.Table(new(model.WillDilutedFee)).ID(feeId).Update(updates)
+	return
+}