diff --git a/project-management/frontend/src/business/menu/errorreportlibrary/components/dialog/ErrorReportLibraryMaintainDialog.vue b/project-management/frontend/src/business/menu/errorreportlibrary/components/dialog/ErrorReportLibraryMaintainDialog.vue
index 0aae2323ce..cbd24444bb 100644
--- a/project-management/frontend/src/business/menu/errorreportlibrary/components/dialog/ErrorReportLibraryMaintainDialog.vue
+++ b/project-management/frontend/src/business/menu/errorreportlibrary/components/dialog/ErrorReportLibraryMaintainDialog.vue
@@ -47,7 +47,7 @@
           </el-col>
         </el-row>
         <el-row type="flex" :gutter="20">
-          <el-col :span="4">
+          <el-col :span="6">
             <el-form-item
               :label="$t('error_report_library.option.match_rule')"
               :label-width="formLabelWidth"
@@ -296,4 +296,8 @@ export default {
 .assertion-item {
   width: 100%;
 }
+
+.assertion-select {
+  width: 250px;
+}
 </style>