diff --git a/plugins/plugin-admin/ui/app.js b/plugins/plugin-admin/ui/app.js
index 030e8a1..089a0e6 100644
--- a/plugins/plugin-admin/ui/app.js
+++ b/plugins/plugin-admin/ui/app.js
@@ -42,6 +42,7 @@
   const logout = async () => { try { await api('/logout', { method: 'POST' }) } catch (_) {} csrf = ''; setLoggedIn(null); $('#login-form').hidden = false; $('#twofa-form').hidden = true }
   const badge = (state) => `<span class="badge badge-${String(state || '').replace(/[^a-z_]/g, '')}">${escapeHtml(state || 'unknown')}</span>`
   const escapeHtml = (value) => String(value == null ? '' : value).replace(/[&<>"']/g, (char) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[char]))
+  const normalizedVersion = (value) => String(value || '').trim().replace(/^v/, '')
   const marketplaceInstalled = (item) => {
     const installed = installedPlugins.get(String(item.plugin_id || ''))
     return !!(item.installed || installed)
@@ -55,7 +56,7 @@
     if (!items.length) { root.innerHTML = '<div class="empty">暂无可用插件</div>'; return }
     for (const item of items) {
       const pluginId = String(item.plugin_id || ''); const version = String(item.version || '')
-      const installed = marketplaceInstalled(item); const sameVersion = installed && String(item.installed_version || '') === version; const card = document.createElement('article'); card.className = 'market-card'
+      const installed = marketplaceInstalled(item); const sameVersion = installed && normalizedVersion(item.installed_version) === normalizedVersion(version); const card = document.createElement('article'); card.className = 'market-card'
       const marketButtonLabel = installed ? (sameVersion ? '已入库' : '请在已入库卡片中升级') : '下载并入库'
       card.innerHTML = `<div class="market-title"><div><h3>${escapeHtml(item.name || pluginId)}</h3><p class="muted mono">${escapeHtml(pluginId)} · v${escapeHtml(version)}</p></div>${marketplaceStatus(item)}</div><p class="market-description">${escapeHtml(item.description || '由受控插件目录提供的 Business Plugin')}</p><dl class="market-meta"><div><dt>发布者</dt><dd>${escapeHtml(item.publisher || item.publisher_key_id || '-')}</dd></div><div><dt>兼容性</dt><dd>${escapeHtml(item.compatibility && item.compatibility.status || item.compatibility_status || 'unknown')}</dd></div><div><dt>包 SHA-256</dt><dd class="mono">${escapeHtml(item.archive_sha256 || item.sha256 || '-')}</dd></div></dl><div class="market-actions"><button data-market-action="install" data-id="${escapeHtml(pluginId)}" data-version="${escapeHtml(version)}" class="button" ${installed ? 'disabled' : ''}>${marketButtonLabel}</button></div>`
       root.appendChild(card)