diff --git a/web-app/src/app/routes/alert/alert-setting/alert-setting.component.html b/web-app/src/app/routes/alert/alert-setting/alert-setting.component.html
index ae6ae450f66..43befa6563c 100644
--- a/web-app/src/app/routes/alert/alert-setting/alert-setting.component.html
+++ b/web-app/src/app/routes/alert/alert-setting/alert-setting.component.html
@@ -151,6 +151,7 @@
             required
             name="target"
             id="target"
+            [nzShowSearch]="true"
             [nzOptions]="appHierarchies"
             [(ngModel)]="cascadeValues"
             (ngModelChange)="cascadeOnChange($event)"
@@ -182,7 +183,10 @@
                   <code>instance : {{ 'alert.setting.target.instance' | i18n }}</code>
                 </nz-list-item>
                 <nz-list-item>
-                  <code>{{ 'alert.setting.operator' | i18n }} : equals(str1,str2), ==, <, <=, >, >=, !=, ( ), +, -, &&, ||</code>
+                  <code>
+                    {{ 'alert.setting.operator' | i18n }} : equals(str1,str2), contains(str1,str2), exists(keyName), matches(str,regex), ==,
+                    <, <=, >, >=, !=, ( ), +, -, &&, ||
+                  </code>
                 </nz-list-item>
               </nz-list>
             </nz-collapse-panel>
@@ -259,6 +263,26 @@
                   [nzValue]="'!equals'"
                   [nzLabel]="'alert.setting.rule.operator.str-no-equals' | i18n"
                 ></nz-option>
+                <nz-option
+                  *ngIf="!alertRule.metric || alertRule.metric.type === 1"
+                  [nzValue]="'contains'"
+                  [nzLabel]="'alert.setting.rule.operator.str-contains' | i18n"
+                ></nz-option>
+                <nz-option
+                  *ngIf="!alertRule.metric || alertRule.metric.type === 1"
+                  [nzValue]="'!contains'"
+                  [nzLabel]="'alert.setting.rule.operator.str-no-contains' | i18n"
+                ></nz-option>
+                <nz-option
+                  *ngIf="!alertRule.metric || alertRule.metric.type === 1"
+                  [nzValue]="'matches'"
+                  [nzLabel]="'alert.setting.rule.operator.str-matches' | i18n"
+                ></nz-option>
+                <nz-option
+                  *ngIf="!alertRule.metric || alertRule.metric.type === 1"
+                  [nzValue]="'!matches'"
+                  [nzLabel]="'alert.setting.rule.operator.str-no-matches' | i18n"
+                ></nz-option>
               </nz-select>
               <input
                 nz-input
@@ -274,26 +298,26 @@
                 nzSpan="10"
               />
               <button
-                *ngIf="i === alertRules.length - 1 && i < 4"
+                *ngIf="i != alertRules.length - 1 || i == 4"
                 nz-button
-                nzType="primary"
                 nz-col
                 nzSpan="2"
+                nzDanger
                 nzGhost="true"
-                (click)="onAddNewAlertRule()"
+                (click)="onRemoveAlertRule(i)"
               >
-                <span nz-icon nzType="plus"></span>
+                <span nz-icon nzType="minus"></span>
               </button>
               <button
-                *ngIf="i != alertRules.length - 1 || i == 4"
+                *ngIf="i === alertRules.length - 1 && i < 4"
                 nz-button
+                nzType="primary"
                 nz-col
                 nzSpan="2"
-                nzDanger
                 nzGhost="true"
-                (click)="onRemoveAlertRule(i)"
+                (click)="onAddNewAlertRule()"
               >
-                <span nz-icon nzType="minus"></span>
+                <span nz-icon nzType="plus"></span>
               </button>
             </div>
           </div>
diff --git a/web-app/src/assets/i18n/en-US.json b/web-app/src/assets/i18n/en-US.json
index bc18df67bb1..ef02e381824 100644
--- a/web-app/src/assets/i18n/en-US.json
+++ b/web-app/src/assets/i18n/en-US.json
@@ -117,6 +117,10 @@
   "alert.setting.rule.operator": "Operator",
   "alert.setting.rule.operator.str-equals": "equals",
   "alert.setting.rule.operator.str-no-equals": "not equals",
+  "alert.setting.rule.operator.str-contains": "contains",
+  "alert.setting.rule.operator.str-no-contains": "not contains",
+  "alert.setting.rule.operator.str-matches": "matches",
+  "alert.setting.rule.operator.str-no-matches": "not matches",
   "alert.setting.rule.string-value.place-holder": "Please input string",
   "alert.setting.rule.numeric-value.place-holder": "Please input numeric",
   "alert.setting.times": "Trigger Times",
diff --git a/web-app/src/assets/i18n/zh-CN.json b/web-app/src/assets/i18n/zh-CN.json
index 0d59dce2db1..52cbc80eb84 100644
--- a/web-app/src/assets/i18n/zh-CN.json
+++ b/web-app/src/assets/i18n/zh-CN.json
@@ -117,6 +117,10 @@
   "alert.setting.rule.operator": "运算符",
   "alert.setting.rule.operator.str-equals": "等于",
   "alert.setting.rule.operator.str-no-equals": "不等于",
+  "alert.setting.rule.operator.str-contains": "包含",
+  "alert.setting.rule.operator.str-no-contains": "不包含",
+  "alert.setting.rule.operator.str-matches": "匹配",
+  "alert.setting.rule.operator.str-no-matches": "不匹配",
   "alert.setting.rule.string-value.place-holder": "请输入匹配字符串",
   "alert.setting.rule.numeric-value.place-holder": "请输入匹配数值",
   "alert.setting.times": "触发次数",
diff --git a/web-app/src/assets/i18n/zh-TW.json b/web-app/src/assets/i18n/zh-TW.json
index ded8b0e60ac..e5d31f2f06f 100644
--- a/web-app/src/assets/i18n/zh-TW.json
+++ b/web-app/src/assets/i18n/zh-TW.json
@@ -117,6 +117,10 @@
   "alert.setting.rule.operator": "運算符",
   "alert.setting.rule.operator.str-equals": "等於",
   "alert.setting.rule.operator.str-no-equals": "不等於",
+  "alert.setting.rule.operator.str-contains": "包含",
+  "alert.setting.rule.operator.str-no-contains": "不包含",
+  "alert.setting.rule.operator.str-matches": "匹配",
+  "alert.setting.rule.operator.str-no-matches": "不匹配",
   "alert.setting.rule.string-value.place-holder": "請輸入匹配字符串",
   "alert.setting.rule.numeric-value.place-holder": "請輸入匹配數值",
   "alert.setting.times": "觸發次數",