diff --git a/src/api/device/appIcon.ts b/src/api/device/appIcon.ts
new file mode 100644
index 00000000..32a9c95b
--- /dev/null
+++ b/src/api/device/appIcon.ts
@@ -0,0 +1,73 @@
+import request from "@/utils/request";
+import type { AppIconQuery, AppIconVO } from "./types";
+
+const APP_ICON_BASE_URL = "/api/v1/app-icons";
+
+const AppIconAPI = {
+  /** 应用图标库分页列表（不传 packageName 返回全部） */
+  getPage(queryParams: AppIconQuery) {
+    return request<unknown, PageResult<AppIconVO>>({
+      url: `${APP_ICON_BASE_URL}/page`,
+      method: "get",
+      params: queryParams,
+    });
+  },
+
+  /** 获取应用当前生效图标信息 */
+  getCurrentIcon(packageName: string) {
+    return request<unknown, AppIconVO>({
+      url: `${APP_ICON_BASE_URL}/${packageName}`,
+      method: "get",
+    });
+  },
+
+  /** 获取应用图标历史版本列表（含当前，按版本倒序） */
+  getHistory(packageName: string) {
+    return request<unknown, AppIconVO[]>({
+      url: `${APP_ICON_BASE_URL}/${packageName}/history`,
+      method: "get",
+    });
+  },
+
+  /** 选取历史版本并锁定 */
+  lock(packageName: string, iconId: number) {
+    return request({
+      url: `${APP_ICON_BASE_URL}/${packageName}/lock`,
+      method: "post",
+      params: { iconId },
+    });
+  },
+
+  /** 解锁当前图标 */
+  unlock(packageName: string) {
+    return request({
+      url: `${APP_ICON_BASE_URL}/${packageName}/unlock`,
+      method: "post",
+    });
+  },
+
+  /** 上传应用图标 */
+  upload(packageName: string, file: File, appName?: string) {
+    const formData = new FormData();
+    formData.append("file", file);
+    if (appName) {
+      formData.append("appName", appName);
+    }
+    return request<unknown, string>({
+      url: `${APP_ICON_BASE_URL}/${packageName}/upload`,
+      method: "post",
+      data: formData,
+      headers: { "Content-Type": "multipart/form-data" },
+    });
+  },
+
+  /** 删除应用图标版本 */
+  delete(packageName: string, iconId: number) {
+    return request({
+      url: `${APP_ICON_BASE_URL}/${packageName}/${iconId}`,
+      method: "delete",
+    });
+  },
+};
+
+export default AppIconAPI;
diff --git a/src/api/device/types.ts b/src/api/device/types.ts
new file mode 100644
index 00000000..e857d52c
--- /dev/null
+++ b/src/api/device/types.ts
@@ -0,0 +1,33 @@
+import type { BaseQueryParams } from "@/api/common";
+
+/** 应用图标分页查询参数 */
+export interface AppIconQuery extends BaseQueryParams {
+  /** 应用包名（可选，不传则返回全部） */
+  packageName?: string;
+}
+
+/** 应用图标VO */
+export interface AppIconVO {
+  /** 主键ID */
+  id?: number;
+  /** 应用包名 */
+  packageName?: string;
+  /** 应用名称 */
+  appName?: string;
+  /** 图标访问地址 */
+  iconUrl?: string;
+  /** 图标文件MD5 */
+  iconMd5?: string;
+  /** 版本号（同包名内自增） */
+  version?: number;
+  /** 状态（1当前生效 0历史版本） */
+  status?: number;
+  /** 是否锁定（0未锁定 1已锁定） */
+  locked?: number;
+  /** 图标来源（device/admin） */
+  source?: string;
+  /** 创建时间 */
+  createTime?: string;
+  /** 更新时间 */
+  updateTime?: string;
+}
diff --git a/src/views/devices/app-icon/index.vue b/src/views/devices/app-icon/index.vue
new file mode 100644
index 00000000..ec98ff02
--- /dev/null
+++ b/src/views/devices/app-icon/index.vue
@@ -0,0 +1,435 @@
+<template>
+  <div class="app-container">
+    <el-card shadow="never" class="mb-4">
+      <el-form ref="queryFormRef" :model="params" :inline="true" @submit.prevent>
+        <el-form-item label="应用包名" prop="packageName">
+          <el-input
+            v-model.trim="params.packageName"
+            placeholder="按包名筛选（留空显示全部）"
+            clearable
+            style="width: 320px"
+            @keyup.enter="handleQuery"
+          />
+        </el-form-item>
+        <el-form-item>
+          <el-button type="primary" :icon="Search" @click="handleQuery">搜索</el-button>
+          <el-button :icon="RefreshLeft" @click="handleResetQuery">重置</el-button>
+        </el-form-item>
+      </el-form>
+    </el-card>
+
+    <el-card shadow="never">
+      <!-- 工具栏 -->
+      <div class="flex items-center justify-between mb-3 flex-wrap gap-2">
+        <div class="flex items-center gap-2 flex-wrap">
+          <span v-if="selectedRow" class="text-sm">
+            已选中：v{{ selectedRow.version }} ·
+            <span class="text-info">{{ selectedRow.packageName }}</span>
+            <el-tag
+              v-if="selectedRow.status === 1"
+              type="success"
+              effect="light"
+              size="small"
+              class="ml-1"
+            >
+              当前生效
+            </el-tag>
+            <el-tag
+              v-if="selectedRow.locked === 1"
+              type="warning"
+              effect="light"
+              size="small"
+              class="ml-1"
+            >
+              已锁定
+            </el-tag>
+          </span>
+          <span v-else class="text-info text-xs">请先在下方列表选择一行，再进行锁定 / 解锁</span>
+        </div>
+        <div class="flex items-center gap-2">
+          <el-button
+            type="primary"
+            :icon="Lock"
+            :disabled="!selectedRow || selectedRow.status === 1"
+            :loading="lockLoading"
+            @click="handleToolbarLock"
+          >
+            锁定
+          </el-button>
+          <el-button
+            type="warning"
+            :icon="Unlock"
+            :disabled="!selectedRow || selectedRow.locked !== 1"
+            :loading="unlockLoading"
+            @click="handleToolbarUnlock"
+          >
+            解锁
+          </el-button>
+          <el-button type="success" :icon="Upload" @click="openUploadDialog">手动上传</el-button>
+        </div>
+      </div>
+
+      <el-table
+        v-loading="loading"
+        :data="list"
+        row-key="id"
+        border
+        stripe
+        highlight-current-row
+        @current-change="handleCurrentChange"
+      >
+        <el-table-column label="图标" width="100" align="center">
+          <template #default="scope">
+            <el-image
+              :src="resolveIconUrl(scope.row.iconUrl)"
+              fit="contain"
+              style="width: 48px; height: 48px; border-radius: 6px"
+              :preview-src-list="previewList"
+              :initial-index="previewIndex(scope.row)"
+              preview-teleported
+            />
+          </template>
+        </el-table-column>
+        <el-table-column
+          label="应用包名"
+          prop="packageName"
+          min-width="180"
+          show-overflow-tooltip
+        />
+        <el-table-column label="应用名称" prop="appName" min-width="140" show-overflow-tooltip />
+        <el-table-column label="版本" prop="version" width="80" align="center" />
+        <el-table-column label="状态" width="100" align="center">
+          <template #default="scope">
+            <el-tag :type="scope.row.status === 1 ? 'success' : 'info'" effect="light">
+              {{ scope.row.status === 1 ? "当前生效" : "历史版本" }}
+            </el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column label="锁定" width="90" align="center">
+          <template #default="scope">
+            <el-tag v-if="scope.row.locked === 1" type="warning" effect="light">已锁定</el-tag>
+            <span v-else class="text-info">—</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="来源" prop="source" width="100" align="center">
+          <template #default="scope">
+            <el-tag v-if="scope.row.source === 'admin'" effect="plain">管理端</el-tag>
+            <el-tag v-else-if="scope.row.source === 'device'" effect="plain" type="info">
+              设备端
+            </el-tag>
+            <span v-else>{{ scope.row.source }}</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="MD5" prop="iconMd5" min-width="200" show-overflow-tooltip />
+        <el-table-column label="更新时间" prop="updateTime" width="180" />
+        <el-table-column label="操作" width="200" align="center" fixed="right">
+          <template #default="scope">
+            <el-button
+              v-if="scope.row.status === 0"
+              type="primary"
+              link
+              :icon="Lock"
+              :loading="lockLoadingId === scope.row.id"
+              @click="handleLock(scope.row)"
+            >
+              锁定此版本
+            </el-button>
+            <el-button
+              v-else-if="scope.row.locked === 1"
+              type="warning"
+              link
+              :icon="Unlock"
+              :loading="lockLoadingId === scope.row.id"
+              @click="handleUnlock(scope.row)"
+            >
+              解锁
+            </el-button>
+            <el-button
+              type="danger"
+              link
+              :icon="Delete"
+              :loading="deleteLoadingId === scope.row.id"
+              @click="handleDelete(scope.row)"
+            >
+              删除
+            </el-button>
+          </template>
+        </el-table-column>
+      </el-table>
+
+      <pagination
+        v-if="total > 0"
+        v-model:total="total"
+        v-model:page="params.pageNum"
+        v-model:limit="params.pageSize"
+        :page-sizes="[10, 20, 50, 100]"
+        @pagination="fetchData"
+      />
+      <el-empty v-if="!loading && total === 0" description="暂无图标" />
+
+      <!-- 手动上传对话框 -->
+      <el-dialog
+        v-model="uploadDialogVisible"
+        title="手动上传图标"
+        width="480px"
+        append-to-body
+        @closed="resetUploadDialog"
+      >
+        <el-form :model="uploadForm" label-width="96px">
+          <el-form-item label="应用包名" required>
+            <el-input
+              v-model.trim="uploadForm.packageName"
+              placeholder="如 com.example.app"
+              clearable
+            />
+          </el-form-item>
+          <el-form-item label="应用名称">
+            <el-input
+              v-model.trim="uploadForm.appName"
+              placeholder="可选，不填沿用已有"
+              clearable
+            />
+          </el-form-item>
+          <el-form-item label="图标文件" required>
+            <el-upload
+              v-model:file-list="uploadFileList"
+              :auto-upload="false"
+              :limit="1"
+              :show-file-list="true"
+              accept=".jpg,.jpeg,.png,.webp,image/*"
+              :before-upload="validateUploadFile"
+              drag
+              class="w-full"
+            >
+              <div class="el-upload__text">
+                将图标拖到此处，或
+                <em>点击选择</em>
+              </div>
+              <template #tip>
+                <div class="text-info text-xs">仅支持 jpg/jpeg/png/webp，大小 ≤ 2MB</div>
+              </template>
+            </el-upload>
+          </el-form-item>
+        </el-form>
+        <template #footer>
+          <el-button @click="uploadDialogVisible = false">取消</el-button>
+          <el-button type="primary" :icon="Upload" :loading="uploadLoading" @click="submitUpload">
+            确认上传
+          </el-button>
+        </template>
+      </el-dialog>
+    </el-card>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, reactive, ref } from "vue";
+import { Delete, Lock, RefreshLeft, Search, Unlock, Upload } from "@element-plus/icons-vue";
+import {
+  ElMessage,
+  ElMessageBox,
+  type FormInstance,
+  type UploadRawFile,
+  type UploadUserFile,
+} from "element-plus";
+
+import { usePageTable } from "@/composables";
+import AppIconAPI from "@/api/device/appIcon";
+import type { AppIconQuery, AppIconVO } from "@/api/device/types";
+
+defineOptions({
+  name: "AppIcon",
+});
+
+const queryFormRef = ref<FormInstance>();
+
+// 分页表格（打开即加载全部图标）
+const { loading, list, total, params, fetchData, handleQuery, handleResetQuery } = usePageTable<
+  AppIconVO,
+  AppIconQuery
+>({
+  initialParams: { pageNum: 1, pageSize: 10, packageName: "" },
+  request: AppIconAPI.getPage,
+  onBeforeReset: () => queryFormRef.value?.resetFields(),
+});
+
+// 当前选中行
+const selectedRow = ref<AppIconVO | null>(null);
+
+// 上传（手动上传对话框）
+const uploadDialogVisible = ref(false);
+const uploadLoading = ref(false);
+const uploadForm = reactive({
+  packageName: "",
+  appName: "",
+});
+const uploadFileList = ref<UploadUserFile[]>([]);
+
+// loading 状态
+const lockLoading = ref(false);
+const unlockLoading = ref(false);
+const lockLoadingId = ref<number | null>(null);
+const deleteLoadingId = ref<number | null>(null);
+
+function handleCurrentChange(row: AppIconVO | null) {
+  selectedRow.value = row;
+}
+
+const previewList = computed(() => list.value.map((item) => resolveIconUrl(item.iconUrl)));
+const previewIndex = (row: AppIconVO) => {
+  const idx = list.value.findIndex((item) => item.id === row.id);
+  return idx < 0 ? 0 : idx;
+};
+
+/**
+ * 拼接图标完整访问地址
+ * 后端返回的是相对路径（如 /static/app_icon/{md5}.png）。
+ * el-image 的 src 是浏览器原生请求，不经过 axios，拿不到 baseURL，
+ * 因此必须手动补上代理前缀（VITE_APP_BASE_API），否则请求会打到前端 dev server 上导致 404。
+ */
+function resolveIconUrl(url?: string | null): string {
+  if (!url) return "";
+  if (/^(https?:)?\/\//.test(url) || url.startsWith("data:")) return url;
+  const baseApi = import.meta.env.VITE_APP_BASE_API ?? "";
+  return `${baseApi.replace(/\/$/, "")}${url.startsWith("/") ? "" : "/"}${url}`;
+}
+
+function validateUploadFile(file: UploadRawFile) {
+  const allowExt = ["jpg", "jpeg", "png", "webp"];
+  const ext = file.name.split(".").pop()?.toLowerCase() || "";
+  const isImage = file.type.startsWith("image/") || allowExt.includes(ext);
+  if (!isImage) {
+    ElMessage.warning("仅支持 jpg/jpeg/png/webp 格式图标");
+    return false;
+  }
+  if (file.size > 2 * 1024 * 1024) {
+    ElMessage.warning("图标大小不能超过 2MB");
+    return false;
+  }
+  return true;
+}
+
+function openUploadDialog() {
+  uploadDialogVisible.value = true;
+}
+
+function resetUploadDialog() {
+  uploadForm.packageName = "";
+  uploadForm.appName = "";
+  uploadFileList.value = [];
+}
+
+async function submitUpload() {
+  const pkg = uploadForm.packageName.trim();
+  if (!pkg) {
+    ElMessage.warning("请填写应用包名");
+    return;
+  }
+  if (!/^[A-Za-z0-9._]+$/.test(pkg)) {
+    ElMessage.warning("应用包名仅支持字母、数字、. 和 _");
+    return;
+  }
+  const file = uploadFileList.value[0]?.raw as File | undefined;
+  if (!file) {
+    ElMessage.warning("请选择图标文件");
+    return;
+  }
+  uploadLoading.value = true;
+  try {
+    await AppIconAPI.upload(pkg, file, uploadForm.appName.trim() || undefined);
+    ElMessage.success("上传成功");
+    uploadDialogVisible.value = false;
+    await fetchData();
+  } finally {
+    uploadLoading.value = false;
+  }
+}
+
+async function handleLock(row: AppIconVO) {
+  if (!row.id || !row.packageName) return;
+  lockLoadingId.value = row.id;
+  try {
+    await AppIconAPI.lock(row.packageName, row.id);
+    ElMessage.success("已锁定该版本");
+    await fetchData();
+  } finally {
+    lockLoadingId.value = null;
+  }
+}
+
+async function handleUnlock(row: AppIconVO) {
+  if (!row.packageName) return;
+  lockLoadingId.value = row.id ?? null;
+  try {
+    await AppIconAPI.unlock(row.packageName);
+    ElMessage.success("已解锁");
+    await fetchData();
+  } finally {
+    lockLoadingId.value = null;
+  }
+}
+
+// 工具栏：锁定当前选中行
+async function handleToolbarLock() {
+  const row = selectedRow.value;
+  if (!row || !row.id || !row.packageName) return;
+  lockLoading.value = true;
+  try {
+    await AppIconAPI.lock(row.packageName, row.id);
+    ElMessage.success("已锁定该版本");
+    await fetchData();
+  } finally {
+    lockLoading.value = false;
+  }
+}
+
+// 工具栏：解锁当前选中行（需为已锁定）
+async function handleToolbarUnlock() {
+  const row = selectedRow.value;
+  if (!row || !row.packageName) return;
+  unlockLoading.value = true;
+  try {
+    await AppIconAPI.unlock(row.packageName);
+    ElMessage.success("已解锁");
+    await fetchData();
+  } finally {
+    unlockLoading.value = false;
+  }
+}
+
+async function handleDelete(row: AppIconVO) {
+  if (!row.id || !row.packageName) return;
+  const isActive = row.status === 1;
+  const tip = isActive
+    ? "该图标为当前生效版本，删除后该应用将无生效图标，确认删除？"
+    : "确认删除该历史图标版本？";
+  try {
+    await ElMessageBox.confirm(tip, "删除图标", {
+      type: "warning",
+      confirmButtonText: "确定",
+      cancelButtonText: "取消",
+    });
+  } catch {
+    return;
+  }
+
+  deleteLoadingId.value = row.id;
+  try {
+    await AppIconAPI.delete(row.packageName, row.id);
+    ElMessage.success("删除成功");
+    await fetchData();
+  } finally {
+    deleteLoadingId.value = null;
+  }
+}
+
+onMounted(() => {
+  fetchData();
+});
+</script>
+
+<style scoped lang="scss">
+.text-info {
+  color: var(--el-text-color-secondary);
+}
+</style>