diff --git a/src/components/BuildVersion.vue b/src/components/BuildVersion.vue
new file mode 100644
index 0000000..fb4b904
--- /dev/null
+++ b/src/components/BuildVersion.vue
@@ -0,0 +1,22 @@
+<template>
+  <div class="build-version">{{ version }}</div>
+</template>
+
+<script setup lang="ts">
+const version = __BUILD_VERSION__
+</script>
+
+<style scoped>
+.build-version {
+  position: fixed;
+  top: 8px;
+  right: 8px;
+  font-size: 10px;
+  color: var(--text-secondary, #9aa0a6);
+  background: var(--bg-secondary, rgba(0,0,0,0.1));
+  padding: 2px 6px;
+  border-radius: 3px;
+  z-index: 9999;
+  font-family: monospace;
+}
+</style>
\ No newline at end of file
diff --git a/src/vite-env.d.ts b/src/vite-env.d.ts
new file mode 100644
index 0000000..b8f1d9e
--- /dev/null
+++ b/src/vite-env.d.ts
@@ -0,0 +1,11 @@
+/// <reference types="vite/client" />
+
+declare const __BUILD_VERSION__: string
+
+interface ImportMetaEnv {
+  readonly VITE_APP_TITLE: string
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv
+}
\ No newline at end of file
diff --git a/vite.config.ts b/vite.config.ts
index 64cb2b4..1d1f1ae 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,9 +1,17 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import { resolve } from 'path'
+import { execSync } from 'child_process'
+
+const gitHash = execSync('git log --format="%h" -1', { encoding: 'utf-8' }).trim()
+const buildTime = new Date().toISOString().slice(0, 19).replace(/[-:T]/g, '')
+const buildVersion = `${buildTime}-${gitHash}`
 
 export default defineConfig({
   plugins: [vue()],
+  define: {
+    __BUILD_VERSION__: JSON.stringify(buildVersion)
+  },
   resolve: {
     alias: {
       '@': resolve(__dirname, 'src')