diff --git a/frontend/src/views/plugins/components/PluginAssetPicker.vue b/frontend/src/views/plugins/components/PluginAssetPicker.vue
new file mode 100644
index 000000000..8cc4fac65
--- /dev/null
+++ b/frontend/src/views/plugins/components/PluginAssetPicker.vue
@@ -0,0 +1,118 @@
+<script setup lang="ts">
+import type { PluginReleaseAsset } from '@/api'
+import { BasePopover, BaseScrollbar, BaseTag } from '@codex-proxy/ui'
+import { ChevronDown, FileArchive } from '@lucide/vue'
+import { useElementSize, useEventListener } from '@vueuse/core'
+import { computed, nextTick, shallowRef, useId, useTemplateRef, watch } from 'vue'
+import { formatPluginFileSize } from '../utils/model'
+
+const props = defineProps<{ assets: PluginReleaseAsset[], disabled?: boolean }>()
+const selected = defineModel<string>({ required: true })
+const open = shallowRef(false)
+const trigger = useTemplateRef<HTMLButtonElement>('trigger')
+const panel = useTemplateRef<HTMLDivElement>('panel')
+const panelId = useId()
+const { width } = useElementSize(trigger, undefined, { box: 'border-box' })
+const selectedAsset = computed(() => props.assets.find(asset => asset.name === selected.value))
+
+async function close() {
+  open.value = false
+  await nextTick()
+  trigger.value?.focus()
+}
+
+function select(name: string) {
+  if (props.disabled)
+    return
+  selected.value = name
+  void close()
+}
+
+function handleKeydown(event: KeyboardEvent) {
+  if (event.key !== 'Escape' || !open.value)
+    return
+  event.preventDefault()
+  event.stopPropagation()
+  void close()
+}
+
+useEventListener(panel, 'keydown', handleKeydown)
+useEventListener(panel, 'keydown', (event) => {
+  if (!['ArrowDown', 'ArrowUp', 'Home', 'End'].includes(event.key))
+    return
+  const options = [...(panel.value?.querySelectorAll<HTMLButtonElement>('button:not(:disabled)') ?? [])]
+  if (!options.length)
+    return
+  event.preventDefault()
+  event.stopPropagation()
+  const current = options.indexOf(event.target as HTMLButtonElement)
+  const next = event.key === 'Home' ? 0 : event.key === 'End' ? options.length - 1 : (current + (event.key === 'ArrowDown' ? 1 : -1) + options.length) % options.length
+  options[next]?.focus()
+})
+watch(open, async (value) => {
+  if (!value)
+    return
+  await nextTick()
+  if (open.value)
+    (panel.value?.querySelector<HTMLButtonElement>('[aria-selected="true"]') ?? panel.value?.querySelector<HTMLButtonElement>('button:not(:disabled)'))?.focus()
+})
+watch(() => props.disabled, (value) => {
+  if (value)
+    open.value = false
+})
+</script>
+
+<template>
+  <BasePopover v-model="open" placement="bottom-start" :disabled="disabled" class="w-full min-w-0">
+    <template #trigger>
+      <button
+        ref="trigger"
+        type="button"
+        :disabled="disabled"
+        :title="selectedAsset?.name"
+        :aria-label="selectedAsset ? `插件包：${selectedAsset.name}` : '选择插件包'"
+        aria-haspopup="listbox"
+        :aria-expanded="open"
+        :aria-controls="open ? panelId : undefined"
+        class="flex min-h-cp-control w-full min-w-0 items-center gap-3 rounded-cp border-0 px-3.5 py-2 text-left text-cp shadow-cp-input outline-none transition-[background-color,box-shadow] duration-160 motion-reduce:transition-none"
+        :class="disabled
+          ? 'cursor-not-allowed bg-cp-bg-container-disabled text-cp-text-disabled shadow-none'
+          : open
+            ? 'cursor-pointer bg-(--cp-input-active-bg) text-cp-text shadow-cp-input-active'
+            : 'cursor-pointer bg-(--cp-input-bg) text-cp-text hover:bg-(--cp-input-hover-bg) hover:shadow-cp-input-hover focus-visible:bg-(--cp-input-active-bg) focus-visible:shadow-cp-input-active'"
+        @keydown="handleKeydown"
+        @keydown.down.prevent="open = !disabled"
+      >
+        <FileArchive v-if="selectedAsset" class="size-4 shrink-0 text-cp-text-tertiary" aria-hidden="true" />
+        <span class="min-w-0 flex-1 truncate text-cp-sm" :class="{ 'text-cp-text-quaternary': !selectedAsset }">
+          {{ selectedAsset?.name ?? '选择插件包' }}
+        </span>
+        <ChevronDown class="size-4 shrink-0 text-cp-text-tertiary transition-transform motion-reduce:transition-none" :class="{ 'rotate-180': open }" aria-hidden="true" />
+      </button>
+    </template>
+    <div :id="panelId" ref="panel" role="listbox" aria-label="插件包" aria-required="true" :style="{ width: `${width}px` }" class="max-w-[calc(100vw-2rem)] p-1.5">
+      <BaseScrollbar max-height="min(18rem, 45dvh)">
+        <div class="grid gap-0.5 p-0.5">
+          <button
+            v-for="asset in assets"
+            :key="asset.name"
+            type="button"
+            role="option"
+            tabindex="-1"
+            :title="asset.name"
+            :aria-selected="selected === asset.name"
+            :disabled="disabled"
+            class="flex w-full min-w-0 items-center gap-3 rounded-cp-sm border-0 px-3 py-2.5 text-left outline-none transition-colors focus-visible:ring-2 focus-visible:ring-cp-control-outline focus-visible:ring-inset"
+            :class="disabled ? 'cursor-not-allowed opacity-55' : selected === asset.name ? 'cursor-pointer bg-cp-control-item-bg-active hover:bg-cp-control-item-bg-active-hover' : 'cursor-pointer bg-transparent hover:bg-cp-fill-tertiary'"
+            @click="select(asset.name)"
+          >
+            <span class="min-w-0 flex-1 truncate text-cp-sm" :class="selected === asset.name ? 'text-cp-primary-text' : 'text-cp-text'">{{ asset.name }}</span>
+            <BaseTag class="shrink-0 tabular-nums">
+              {{ formatPluginFileSize(asset.size) }}
+            </BaseTag>
+          </button>
+        </div>
+      </BaseScrollbar>
+    </div>
+  </BasePopover>
+</template>
diff --git a/frontend/src/views/plugins/components/PluginInstallModal.vue b/frontend/src/views/plugins/components/PluginInstallModal.vue
index 2a97edb00..3e9b6d224 100644
--- a/frontend/src/views/plugins/components/PluginInstallModal.vue
+++ b/frontend/src/views/plugins/components/PluginInstallModal.vue
@@ -13,14 +13,15 @@ import type {
 } from '@/api'
 
 import { Github } from '@boxicons/vue'
-import { BaseButton, BaseCheckbox, BaseForm, BaseFormItem, BaseInput, BaseModal, BaseSegmented, BaseSelect, BaseTag, toast } from '@codex-proxy/ui'
+import { BaseButton, BaseCheckbox, BaseForm, BaseFormItem, BaseInput, BaseModal, BaseSegmented, BaseTag, toast } from '@codex-proxy/ui'
 
 import { CheckCircle2, Download, FileArchive, Link, PackageOpen } from '@lucide/vue'
 import { useEventListener, useSessionStorage } from '@vueuse/core'
 import { isEqual } from 'es-toolkit'
 import { computed, nextTick, reactive, shallowRef, watch } from 'vue'
 import { formatDateTime } from '@/utils/date'
-import { normalizePluginRepository, pluginInstallSelectionKey } from '../utils/model'
+import { formatPluginFileSize, normalizePluginRepository, pluginInstallSelectionKey } from '../utils/model'
+import PluginAssetPicker from './PluginAssetPicker.vue'
 import PluginDownloadAuthentication from './PluginDownloadAuthentication.vue'
 import PluginHelpPopover from './PluginHelpPopover.vue'
 import PluginPermissionSummary from './PluginPermissionSummary.vue'
@@ -99,11 +100,7 @@ function changeMode(value: string) {
     return
   emit('changeMode', value)
 }
-const assetOptions = computed(() => (props.release?.assets ?? []).filter(asset => /\.(?:tar\.gz|tgz)$/i.test(asset.name)).map(asset => ({
-  label: `${asset.name} · ${formatFileSize(asset.size)}`,
-  value: asset.name,
-  description: asset.sha256 ? `SHA-256 ${asset.sha256}` : undefined,
-})))
+const releaseAssets = computed(() => (props.release?.assets ?? []).filter(asset => /\.(?:tar\.gz|tgz)$/i.test(asset.name)))
 const digestPattern = /^[a-f0-9]{64}$/
 const digestError = computed(() => {
   const digest = connectionForm.value.sha256.trim().toLowerCase()
@@ -381,14 +378,6 @@ function githubQueryKey() {
   })
 }
 
-function formatFileSize(bytes: number) {
-  if (bytes < 1024)
-    return `${bytes} B`
-  if (bytes < 1024 * 1024)
-    return `${(bytes / 1024).toFixed(1)} KiB`
-  return `${(bytes / 1024 / 1024).toFixed(1)} MiB`
-}
-
 watch(open, (isOpen) => {
   if (isOpen) {
     reset()
@@ -422,7 +411,7 @@ watch(
   () => props.release,
   async (release) => {
     // 唯一归档可直接解析，多个归档交给用户选择，平台兼容性仍由包检查器确认。
-    githubForm.asset = release && assetOptions.value.length === 1 ? assetOptions.value[0]!.value : ''
+    githubForm.asset = release && releaseAssets.value.length === 1 ? releaseAssets.value[0]!.name : ''
     if (githubForm.asset) {
       await nextTick()
       await verifySelected()
@@ -458,7 +447,7 @@ watch(
           <FileArchive class="size-5 shrink-0 text-cp-text-secondary" aria-hidden="true" />
           <span class="grid min-w-0 flex-1 gap-1">
             <span class="truncate text-cp-sm font-emphasis text-cp-text">{{ uploadFile?.name ?? '选择插件包' }}</span>
-            <span class="text-cp-xs text-cp-text-secondary">{{ uploadFile ? formatFileSize(uploadFile.size) : 'tar.gz / tgz，最大 32 MiB' }}</span>
+            <span class="text-cp-xs text-cp-text-secondary">{{ uploadFile ? formatPluginFileSize(uploadFile.size) : 'tar.gz / tgz，最大 32 MiB' }}</span>
           </span>
           <span class="shrink-0 text-cp-xs text-cp-primary-text">{{ uploadFile ? '更换' : '浏览文件' }}</span>
           <input
@@ -531,16 +520,14 @@ watch(
 
     <section v-if="!verified && mode === 'github' && release" class="mt-4 grid gap-3">
       <div class="flex min-w-0 flex-wrap items-center gap-2">
-        <strong class="min-w-0 wrap-break-word text-cp text-cp-text">{{ release.name || release.tag }}</strong>
-        <BaseTag type="primary">
-          {{ release.tag }}
-        </BaseTag>
+        <span class="text-cp-sm text-cp-text-secondary">已找到版本</span>
+        <strong class="min-w-0 wrap-break-word text-cp-sm font-emphasis text-cp-text">{{ release.tag }}</strong>
         <BaseTag v-if="release.prerelease" type="warning">
           预发行版
         </BaseTag>
       </div>
-      <BaseFormItem v-if="assetOptions.length > 1" label="插件包" required>
-        <BaseSelect v-model="githubForm.asset" :options="assetOptions" :disabled="busy" placeholder="选择插件包" class="w-full" />
+      <BaseFormItem v-if="releaseAssets.length > 1" label="插件包" required>
+        <PluginAssetPicker v-model="githubForm.asset" :assets="releaseAssets" :disabled="busy" />
       </BaseFormItem>
       <p v-else class="m-0 break-all text-cp-sm text-cp-text-secondary">
         {{ githubForm.asset || '此版本没有 tar.gz 或 tgz 插件包' }}
diff --git a/frontend/src/views/plugins/utils/model.ts b/frontend/src/views/plugins/utils/model.ts
index 72d906fef..9fbc85ae6 100644
--- a/frontend/src/views/plugins/utils/model.ts
+++ b/frontend/src/views/plugins/utils/model.ts
@@ -64,6 +64,14 @@ export function normalizePluginRepository(value: string) {
   return value.trim().replace(/^https:\/\/github\.com\//i, '').replace(/\/$/, '').replace(/\.git$/i, '').toLowerCase()
 }
 
+export function formatPluginFileSize(bytes: number) {
+  if (bytes < 1024)
+    return `${bytes} B`
+  if (bytes < 1024 * 1024)
+    return `${(bytes / 1024).toFixed(1)} KiB`
+  return `${(bytes / 1024 / 1024).toFixed(1)} MiB`
+}
+
 export function pluginContributionForCapability(
   metadata: PluginArtifactMetadata,
   capability: string,