diff --git a/PackageStructureKit/entry/src/main/a_app_module.json5 b/PackageStructureKit/entry/src/main/a_app_module.json5
new file mode 100644
index 0000000000000000000000000000000000000000..73191e189e758a0d3c87a4667be409b78472a96a
--- /dev/null
+++ b/PackageStructureKit/entry/src/main/a_app_module.json5
@@ -0,0 +1,65 @@
+/*
+* FAQ:如何判断应用程序是否安装
+ */
+
+{
+  "module": {
+    "name": "entry",
+    "type": "entry",
+    "description": "$string:module_desc",
+    "mainElement": "EntryAbility",
+    "deviceTypes": [
+      "phone",
+      "tablet",
+      "2in1"
+    ],
+    "deliveryWithInstall": true,
+    "installationFree": false,
+    "pages": "$profile:main_pages",
+    "abilities": [
+      {
+        "name": "EntryAbility",
+        "srcEntry": "./ets/entryability/EntryAbility.ets",
+        "description": "$string:EntryAbility_desc",
+        "icon": "$media:layered_image",
+        "label": "$string:EntryAbility_label",
+        "startWindowIcon": "$media:startIcon",
+        "startWindowBackground": "$color:start_window_background",
+        "exported": true,
+        "skills": [
+          {
+            "entities": [
+              "entity.system.home"
+            ],
+            "actions": [
+              "action.system.home"
+            ],
+            // [Start a_app_module]
+            "uris": [
+              {
+                "scheme":"schB",
+                "host":"com.example.test",
+                "path":"open",
+              }
+            ],
+            // [End a_app_module]
+          }
+        ]
+      }
+    ],
+    "extensionAbilities": [
+      {
+        "name": "EntryBackupAbility",
+        "srcEntry": "./ets/entrybackupability/EntryBackupAbility.ets",
+        "type": "backup",
+        "exported": false,
+        "metadata": [
+          {
+            "name": "ohos.extension.backup",
+            "resource": "$profile:backup_config"
+          }
+        ],
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/PackageStructureKit/entry/src/main/b_app_module.json5 b/PackageStructureKit/entry/src/main/b_app_module.json5
new file mode 100644
index 0000000000000000000000000000000000000000..56a59c3cd9e1e81ec50fe4d7e644cad313773e21
--- /dev/null
+++ b/PackageStructureKit/entry/src/main/b_app_module.json5
@@ -0,0 +1,61 @@
+/*
+* FAQ:如何判断应用程序是否安装
+ */
+
+{
+  "module": {
+    "name": "entry",
+    "type": "entry",
+    "description": "$string:module_desc",
+    "mainElement": "EntryAbility",
+    // [Start b_app_module]
+    "querySchemes": [
+      "schB"
+    ],
+    // [End b_app_module]
+    "deviceTypes": [
+      "phone",
+      "tablet",
+      "2in1"
+    ],
+    "deliveryWithInstall": true,
+    "installationFree": false,
+    "pages": "$profile:main_pages",
+    "abilities": [
+      {
+        "name": "EntryAbility",
+        "srcEntry": "./ets/entryability/EntryAbility.ets",
+        "description": "$string:EntryAbility_desc",
+        "icon": "$media:layered_image",
+        "label": "$string:EntryAbility_label",
+        "startWindowIcon": "$media:startIcon",
+        "startWindowBackground": "$color:start_window_background",
+        "exported": true,
+        "skills": [
+          {
+            "entities": [
+              "entity.system.home"
+            ],
+            "actions": [
+              "action.system.home"
+            ]
+          }
+        ]
+      }
+    ],
+    "extensionAbilities": [
+      {
+        "name": "EntryBackupAbility",
+        "srcEntry": "./ets/entrybackupability/EntryBackupAbility.ets",
+        "type": "backup",
+        "exported": false,
+        "metadata": [
+          {
+            "name": "ohos.extension.backup",
+            "resource": "$profile:backup_config"
+          }
+        ],
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/PackageStructureKit/entry/src/main/ets/pages/IndexA.ets b/PackageStructureKit/entry/src/main/ets/pages/IndexA.ets
new file mode 100644
index 0000000000000000000000000000000000000000..f33d7b3502da9cf3d44a5c3555803d97087b0081
--- /dev/null
+++ b/PackageStructureKit/entry/src/main/ets/pages/IndexA.ets
@@ -0,0 +1,61 @@
+/*
+* Copyright (c) 2024 Huawei Device Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/*
+* FAQ:如何判断应用程序是否安装
+ */
+
+// [Start is_app_b_exist]
+import { hilog } from '@kit.PerformanceAnalysisKit';
+import { bundleManager } from '@kit.AbilityKit';
+import { BusinessError } from '@kit.BasicServicesKit';
+
+@Entry
+@Component
+struct Index {
+  // Application A determines whether Application B is installed on the device
+  isAppBExist() {
+    let exist = false;
+    try {
+      let link = 'schB://com.example.test/open';
+      let data: boolean = bundleManager.canOpenLink(link);
+      hilog.info(0x0000, 'testTag', 'canOpenLink successfully: %{public}s', JSON.stringify(data));
+      exist = data;
+    } catch (err) {
+      let message = (err as BusinessError).message;
+      hilog.error(0x0000, 'testTag', 'canOpenLink failed: %{public}s', message);
+      exist = false;
+    }
+    console.info('Has application B been installed:' + exist);
+  }
+
+  @State text: string = 'isAppBExist'
+
+  build() {
+    Row() {
+      Column() {
+        Text(this.text)
+          .fontSize(30)
+          .fontWeight(FontWeight.Bold)
+          .onClick(() => {
+            this.isAppBExist();
+          });
+      }
+      .width('100%')
+    }
+    .height('100%')
+  }
+}
+// [End is_app_b_exist]
\ No newline at end of file
diff --git a/PackageStructureKit/entry/src/main/resources/base/profile/main_pages.json b/PackageStructureKit/entry/src/main/resources/base/profile/main_pages.json
index 1898d94f58d6128ab712be2c68acc7c98e9ab9ce..cce56d0acbb9ec973a457874c7fd4bc6698aa9d6 100644
--- a/PackageStructureKit/entry/src/main/resources/base/profile/main_pages.json
+++ b/PackageStructureKit/entry/src/main/resources/base/profile/main_pages.json
@@ -1,5 +1,6 @@
 {
   "src": [
-    "pages/Index"
+    "pages/Index",
+    "pages/IndexA"
   ]
-}
+}
\ No newline at end of file