diff --git a/backend/internal/router/admin/versions.go b/backend/internal/router/admin/versions.go
index 7083ce9..92c5801 100644
--- a/backend/internal/router/admin/versions.go
+++ b/backend/internal/router/admin/versions.go
@@ -272,6 +272,7 @@ type CreateVersionRequest struct {
 	CustomDownloadURL  string `json:"custom_download_url"`
 	Description        string `json:"description"`
 	Changelog          string `json:"changelog"`
+	BaseVersionID      *uint  `json:"base_version_id"`
 }
 
 func handleCreateVersionGlobal(c *gin.Context) {
@@ -360,36 +361,47 @@ func handleCreateVersionGlobal(c *gin.Context) {
 		}
 	} else if version.UpdateType == "patch" {
 		// 补丁包：需要找到基础全量包并合并
-		var lastFullVersion model.Version
-		if err := database.DB.Where("application_id = ? AND update_type = ?", req.ApplicationID, "full").
-			Order("id DESC").First(&lastFullVersion).Error; err == nil {
-			version.BaseVersionID = &lastFullVersion.ID
+		var baseVersion model.Version
 
-			// 获取基础版本的全量包路径，如果没有则使用 FilePath
-			baseFullPackagePath := lastFullVersion.FullPackagePath
-			if baseFullPackagePath == "" {
-				baseFullPackagePath = lastFullVersion.FilePath
-			}
-
-			// 合并生成新的全量包
-			fullPkgPath, fullPkgSize, fullPkgHash, err := MergePatchWithFullPackage(
-				baseFullPackagePath,
-				req.FilePath,
-				req.ApplicationID,
-			)
-			if err != nil {
-				log.Printf("[ERROR] Failed to merge patch with full package: %v\n", err)
-				response.Error(c, 500, "合并补丁包失败: "+err.Error())
+		// 优先使用传入的 base_version_id
+		if req.BaseVersionID != nil {
+			if err := database.DB.Where("id = ? AND application_id = ? AND update_type = ?",
+				*req.BaseVersionID, req.ApplicationID, "full").First(&baseVersion).Error; err != nil {
+				response.Error(c, 400, "指定的基础版本不存在或不是全量版本")
 				return
 			}
-
-			version.FullPackagePath = fullPkgPath
-			version.FullPackageSize = fullPkgSize
-			version.FullPackageHash = fullPkgHash
 		} else {
-			response.Error(c, 400, "找不到基础全量包，无法创建补丁版本")
+			// 未指定基础版本，使用最新的全量版本
+			if err := database.DB.Where("application_id = ? AND update_type = ?", req.ApplicationID, "full").
+				Order("id DESC").First(&baseVersion).Error; err != nil {
+				response.Error(c, 400, "找不到基础全量包，无法创建补丁版本")
+				return
+			}
+		}
+
+		version.BaseVersionID = &baseVersion.ID
+
+		// 获取基础版本的全量包路径，如果没有则使用 FilePath
+		baseFullPackagePath := baseVersion.FullPackagePath
+		if baseFullPackagePath == "" {
+			baseFullPackagePath = baseVersion.FilePath
+		}
+
+		// 合并生成新的全量包
+		fullPkgPath, fullPkgSize, fullPkgHash, err := MergePatchWithFullPackage(
+			baseFullPackagePath,
+			req.FilePath,
+			req.ApplicationID,
+		)
+		if err != nil {
+			log.Printf("[ERROR] Failed to merge patch with full package: %v\n", err)
+			response.Error(c, 500, "合并补丁包失败: "+err.Error())
 			return
 		}
+
+		version.FullPackagePath = fullPkgPath
+		version.FullPackageSize = fullPkgSize
+		version.FullPackageHash = fullPkgHash
 	}
 
 	if err := database.DB.Create(&version).Error; err != nil {
@@ -425,6 +437,7 @@ type UpdateVersionRequest struct {
 	CustomDownloadURL  string `json:"custom_download_url"`
 	Description        string `json:"description"`
 	Changelog          string `json:"changelog"`
+	BaseVersionID      *uint  `json:"base_version_id"`
 }
 
 func handleUpdateVersionGlobal(c *gin.Context) {
diff --git a/frontend/src/pages/admin/versions/create.vue b/frontend/src/pages/admin/versions/create.vue
index af36cc7..6d601a4 100644
--- a/frontend/src/pages/admin/versions/create.vue
+++ b/frontend/src/pages/admin/versions/create.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { CheckCircle, Eye, FileArchive, FilePlus, GitBranch, Loader2, Rocket, Upload, UploadCloud, X } from 'lucide-vue-next'
-import { computed, onMounted, ref } from 'vue'
+import { computed, onMounted, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRoute, useRouter } from 'vue-router'
 import { toast } from 'vue-sonner'
@@ -39,6 +39,8 @@ const uploading = ref(false)
 const uploadProgress = ref(0)
 const uploadSpeed = ref('')
 const applications = ref<Application[]>([])
+const baseVersions = ref<{ id: number, version: string }[]>([])
+const loadingBaseVersions = ref(false)
 
 const formData = ref({
   application_id: '',
@@ -51,6 +53,7 @@ const formData = ref({
   changelog: '',
   entry_file: '',
   file: null as File | null,
+  base_version_id: '' as string,
 })
 
 const uploadedData = ref<UploadResponse | null>(null)
@@ -123,6 +126,62 @@ async function fetchApplications() {
   }
 }
 
+async function fetchBaseVersions(appId: string) {
+  if (!appId) {
+    baseVersions.value = []
+    return
+  }
+  loadingBaseVersions.value = true
+  try {
+    const data = await api.get<{ versions: { id: number, version: string, update_type: string }[] }>(
+      `/dev/versions?application_id=${appId}&update_type=full&page_size=100`
+    )
+    console.log('[DEBUG] fetchBaseVersions response:', data)
+    // 只筛选全量版本
+    const versions = data?.versions || []
+    baseVersions.value = versions.filter(v => v.update_type === 'full')
+    console.log('[DEBUG] baseVersions after filter:', baseVersions.value)
+  }
+  catch (error) {
+    console.error('获取基础版本列表失败:', error)
+    baseVersions.value = []
+  }
+  finally {
+    loadingBaseVersions.value = false
+  }
+}
+
+// 监听应用变化
+watch(
+  () => formData.value.application_id,
+  (newAppId) => {
+    console.log('[DEBUG] application_id changed:', newAppId, 'update_type:', formData.value.update_type)
+    if (newAppId && formData.value.update_type === 'patch') {
+      fetchBaseVersions(newAppId)
+    } else if (!newAppId) {
+      // 只有当应用被清空时才清空基础版本
+      baseVersions.value = []
+      formData.value.base_version_id = ''
+    }
+  },
+  { immediate: true }
+)
+
+// 监听更新类型变化
+watch(
+  () => formData.value.update_type,
+  (newType) => {
+    console.log('[DEBUG] update_type changed:', newType, 'application_id:', formData.value.application_id)
+    if (newType === 'patch' && formData.value.application_id) {
+      fetchBaseVersions(formData.value.application_id)
+    } else if (newType !== 'patch') {
+      baseVersions.value = []
+      formData.value.base_version_id = ''
+    }
+  },
+  { immediate: true }
+)
+
 function handleFileSelect(event: Event) {
   const target = event.target as HTMLInputElement
   if (target.files && target.files.length > 0) {
@@ -195,7 +254,7 @@ async function handleSubmit() {
 
   saving.value = true
   try {
-    await api.post('/dev/versions', {
+    const payload: Record<string, any> = {
       application_id: Number(formData.value.application_id),
       version: formData.value.version,
       description: formData.value.description,
@@ -208,7 +267,12 @@ async function handleSubmit() {
       file_path: uploadedData.value.file_path,
       file_size: uploadedData.value.file_size,
       file_hash: uploadedData.value.file_hash,
-    })
+    }
+    // 如果是补丁版本，添加基础版本ID
+    if (formData.value.update_type === 'patch' && formData.value.base_version_id) {
+      payload.base_version_id = Number(formData.value.base_version_id)
+    }
+    await api.post('/dev/versions', payload)
     toast.success(t('admin.versions.createForm.createSuccess'))
     router.push('/admin/versions')
   }
@@ -465,6 +529,31 @@ onMounted(() => {
                 </UiSelect>
               </div>
 
+              <!-- 基础版本选择（仅补丁类型） -->
+              <div v-if="formData.update_type === 'patch'" class="space-y-2">
+                <UiLabel>{{ t('admin.versions.createForm.baseVersion') }}</UiLabel>
+                <p class="text-sm text-muted-foreground">
+                  {{ t('admin.versions.createForm.baseVersionDesc') }}
+                </p>
+                <UiSelect v-model="formData.base_version_id" :disabled="saving || loadingBaseVersions">
+                  <UiSelectTrigger>
+                    <UiSelectValue :placeholder="t('admin.versions.createForm.baseVersionPlaceholder')" />
+                  </UiSelectTrigger>
+                  <UiSelectContent>
+                    <UiSelectItem
+                      v-for="v in baseVersions"
+                      :key="v.id"
+                      :value="String(v.id)"
+                    >
+                      {{ v.version }}
+                    </UiSelectItem>
+                  </UiSelectContent>
+                </UiSelect>
+                <p v-if="baseVersions.length === 0 && !loadingBaseVersions" class="text-sm text-destructive">
+                  {{ t('admin.versions.createForm.noBaseVersion') }}
+                </p>
+              </div>
+
               <div class="space-y-2">
                 <UiLabel>{{ t('admin.versions.createForm.updateMethod') }}</UiLabel>
                 <UiSelect v-model="formData.update_method" :disabled="saving">
diff --git a/frontend/src/plugins/i18n/en.json b/frontend/src/plugins/i18n/en.json
index f44c6c2..40fada7 100644
--- a/frontend/src/plugins/i18n/en.json
+++ b/frontend/src/plugins/i18n/en.json
@@ -1502,8 +1502,8 @@
         "updateMethod": "Update Method",
         "baseVersion": "Base Version",
         "baseVersionPlaceholder": "Select base version (patch mode)",
-        "baseVersionDesc": "Select a base version to only upload changed files for incremental patch update",
-        "noBaseVersion": "None (Full version)",
+        "baseVersionDesc": "Select a full version as the base for this patch. The patch will be generated based on this version",
+        "noBaseVersion": "No full version available. Please create a full version first",
         "status": "Status",
         "autoUpdate": "Auto Update",
         "autoUpdateDesc": "When enabled, the application will automatically download and install updates",
diff --git a/frontend/src/plugins/i18n/zh.json b/frontend/src/plugins/i18n/zh.json
index 5f9efcc..88bb582 100644
--- a/frontend/src/plugins/i18n/zh.json
+++ b/frontend/src/plugins/i18n/zh.json
@@ -1480,8 +1480,8 @@
         "updateMethod": "更新方式",
         "baseVersion": "基础版本",
         "baseVersionPlaceholder": "选择基础版本（补丁模式）",
-        "baseVersionDesc": "选择基础版本后，只会上传变更的文件，用于增量补丁更新",
-        "noBaseVersion": "无（完整版本）",
+        "baseVersionDesc": "选择一个全量版本作为此补丁包的基础，补丁将基于此版本生成",
+        "noBaseVersion": "没有可用的全量版本，请先创建全量版本",
         "status": "状态",
         "autoUpdate": "自动更新",
         "autoUpdateDesc": "启用后应用将自动下载并安装更新",