diff --git a/be/apps/core/src/modules/photo/photo.service.ts b/be/apps/core/src/modules/photo/photo.service.ts
index af490316..95f64ca3 100644
--- a/be/apps/core/src/modules/photo/photo.service.ts
+++ b/be/apps/core/src/modules/photo/photo.service.ts
@@ -7,7 +7,7 @@ import type {
   StorageConfig,
   StorageObject,
 } from '@afilmory/builder'
-import { AfilmoryBuilder, processPhotoWithPipeline } from '@afilmory/builder'
+import { AfilmoryBuilder, processPhotoWithPipeline, thumbnailStoragePlugin } from '@afilmory/builder'
 import type { Logger as BuilderLogger } from '@afilmory/builder/logger/index.js'
 import type { PhotoProcessingLoggers } from '@afilmory/builder/photo/index.js'
 import { createPhotoProcessingLoggers, setGlobalLoggers } from '@afilmory/builder/photo/index.js'
@@ -38,7 +38,8 @@ export class PhotoBuilderService {
   private photoLoggers: PhotoProcessingLoggers | null = null
 
   createBuilder(config: BuilderConfig): AfilmoryBuilder {
-    return new AfilmoryBuilder(config)
+    const enhancedConfig = this.ensureThumbnailPlugin(config)
+    return new AfilmoryBuilder(enhancedConfig)
   }
 
   applyStorageConfig(builder: AfilmoryBuilder, config: StorageConfig): void {
@@ -139,4 +140,27 @@ export class PhotoBuilderService {
 
     return result
   }
+
+  private ensureThumbnailPlugin(config: BuilderConfig): BuilderConfig {
+    const existingPlugins = config.plugins ?? []
+    const hasPlugin = existingPlugins.some((entry) => {
+      if (typeof entry === 'string') {
+        return entry.includes('thumbnail-storage')
+      }
+      if (typeof entry === 'function') {
+        const fnName = entry.name ?? ''
+        return fnName.includes('thumbnailStorage') || entry.toString().includes('thumbnail-storage')
+      }
+      return entry?.name === 'afilmory:thumbnail-storage'
+    })
+
+    if (hasPlugin) {
+      return config
+    }
+
+    return {
+      ...config,
+      plugins: [...existingPlugins, thumbnailStoragePlugin()],
+    }
+  }
 }
diff --git a/builder.config.default.ts b/builder.config.default.ts
index 55ce03a5..86b326c8 100644
--- a/builder.config.default.ts
+++ b/builder.config.default.ts
@@ -1,6 +1,6 @@
 import os from 'node:os'
 
-import { defineBuilderConfig } from '@afilmory/builder'
+import { defineBuilderConfig, thumbnailStoragePlugin } from '@afilmory/builder'
 
 import { env } from './env.js'
 
@@ -52,5 +52,5 @@ export default defineBuilderConfig(() => ({
       workerConcurrency: 2,
     },
   },
-  plugins: [],
+  plugins: [thumbnailStoragePlugin()],
 }))
diff --git a/packages/builder/src/config/defaults.ts b/packages/builder/src/config/defaults.ts
index c244c326..b7d962fa 100644
--- a/packages/builder/src/config/defaults.ts
+++ b/packages/builder/src/config/defaults.ts
@@ -1,5 +1,6 @@
 import os from 'node:os'
 
+import thumbnailStoragePlugin from '../plugins/thumbnail-storage/index.js'
 import type { BuilderConfig } from '../types/config.js'
 
 export function createDefaultBuilderConfig(): BuilderConfig {
@@ -51,6 +52,6 @@ export function createDefaultBuilderConfig(): BuilderConfig {
         workerConcurrency: 2,
       },
     },
-    plugins: [],
+    plugins: [thumbnailStoragePlugin()],
   }
 }
diff --git a/packages/builder/src/index.ts b/packages/builder/src/index.ts
index 6f3714c7..3917e0ea 100644
--- a/packages/builder/src/index.ts
+++ b/packages/builder/src/index.ts
@@ -22,6 +22,8 @@ export type { LocalStoragePluginOptions } from './plugins/storage/local.js'
 export { default as localStoragePlugin } from './plugins/storage/local.js'
 export type { S3StoragePluginOptions } from './plugins/storage/s3.js'
 export { default as s3StoragePlugin } from './plugins/storage/s3.js'
+export type { ThumbnailStoragePluginOptions } from './plugins/thumbnail-storage/index.js'
+export { default as thumbnailStoragePlugin } from './plugins/thumbnail-storage/index.js'
 export type {
   BuilderPlugin,
   BuilderPluginConfigEntry,
diff --git a/packages/builder/src/photo/image-pipeline.ts b/packages/builder/src/photo/image-pipeline.ts
index 9a66e476..eeeb3a07 100644
--- a/packages/builder/src/photo/image-pipeline.ts
+++ b/packages/builder/src/photo/image-pipeline.ts
@@ -13,6 +13,7 @@ import {
   preprocessImageBuffer,
 } from '../image/processor.js'
 import type { PluginRunState } from '../plugins/manager.js'
+import { THUMBNAIL_PLUGIN_DATA_KEY } from '../plugins/thumbnail-storage/shared.js'
 import type { PhotoManifestItem, ProcessPhotoResult } from '../types/photo.js'
 import { shouldProcessPhoto } from './cache-manager.js'
 import { processExifData, processThumbnailAndBlurhash, processToneAnalysis } from './data-processors.js'
@@ -162,6 +163,13 @@ export async function executePhotoProcessingPipeline(
     // 3. 处理缩略图和 blurhash
     const thumbnailResult = await processThumbnailAndBlurhash(imageBuffer, photoId, existingItem, options)
 
+    context.pluginData[THUMBNAIL_PLUGIN_DATA_KEY] = {
+      photoId,
+      fileName: `${photoId}.jpg`,
+      buffer: thumbnailResult.thumbnailBuffer,
+      localUrl: thumbnailResult.thumbnailUrl,
+    }
+
     // 4. 处理 EXIF 数据
     const exifData = await processExifData(imageBuffer, imageData.rawBuffer, photoKey, existingItem, options)
 
diff --git a/packages/builder/src/plugins/thumbnail-storage/index.ts b/packages/builder/src/plugins/thumbnail-storage/index.ts
new file mode 100644
index 00000000..73d3ecf5
--- /dev/null
+++ b/packages/builder/src/plugins/thumbnail-storage/index.ts
@@ -0,0 +1,182 @@
+import { StorageManager } from '../../storage/index.js'
+import type { StorageConfig } from '../../storage/interfaces.js'
+import type { BuilderPlugin } from '../types.js'
+import type {ThumbnailPluginData} from './shared.js';
+import { THUMBNAIL_PLUGIN_DATA_KEY  } from './shared.js'
+
+const DEFAULT_DIRECTORY = '.afilmory/thumbnails'
+const DEFAULT_CONTENT_TYPE = 'image/jpeg'
+const PLUGIN_NAME = 'afilmory:thumbnail-storage'
+const RUN_STATE_KEY = 'state'
+
+type UploadableStorageConfig = Exclude<StorageConfig, { provider: 'eagle' }>
+
+interface ThumbnailStoragePluginOptions {
+  directory?: string
+  storageConfig?: UploadableStorageConfig
+  contentType?: string
+}
+
+interface ResolvedPluginConfig {
+  directory: string
+  remotePrefix: string
+  contentType: string
+  useDefaultStorage: boolean
+  storageConfig: UploadableStorageConfig | null
+  enabled: boolean
+}
+
+interface PluginRunState {
+  uploaded: Set<string>
+  urlCache: Map<string, string>
+}
+
+function normalizeDirectory(directory: string | undefined): string {
+  const value = directory?.trim() || DEFAULT_DIRECTORY
+  const normalized = value.replaceAll('\\', '/').replaceAll(/^\/+|\/+$/g, '')
+  return normalized || DEFAULT_DIRECTORY
+}
+
+function trimSlashes(value: string | undefined | null): string | null {
+  if (!value) return null
+  const normalized = value.replaceAll('\\', '/').replaceAll(/^\/+|\/+$/g, '')
+  return normalized.length > 0 ? normalized : null
+}
+
+function joinSegments(...segments: Array<string | null | undefined>): string {
+  const filtered = segments
+    .map((segment) => (segment ?? '').replaceAll('\\', '/').replaceAll(/^\/+|\/+$/g, ''))
+    .filter((segment) => segment.length > 0)
+  return filtered.join('/')
+}
+
+function resolveRemotePrefix(config: UploadableStorageConfig, directory: string): string {
+  switch (config.provider) {
+    case 's3': {
+      const base = trimSlashes(config.prefix)
+      return joinSegments(base, directory)
+    }
+    case 'github': {
+      return joinSegments(directory)
+    }
+    case 'local': {
+      return joinSegments(directory)
+    }
+    default: {
+      return joinSegments(directory)
+    }
+  }
+}
+
+function getOrCreateRunState(container: Map<string, unknown>): PluginRunState {
+  let state = container.get(RUN_STATE_KEY) as PluginRunState | undefined
+  if (!state) {
+    state = {
+      uploaded: new Set<string>(),
+      urlCache: new Map<string, string>(),
+    }
+    container.set(RUN_STATE_KEY, state)
+  }
+  return state
+}
+
+export default function thumbnailStoragePlugin(options: ThumbnailStoragePluginOptions = {}): BuilderPlugin {
+  let resolved: ResolvedPluginConfig | null = null
+  let externalStorageManager: StorageManager | null = null
+
+  return {
+    name: PLUGIN_NAME,
+    hooks: {
+      onInit: ({ builder, config, logger }) => {
+        const storageConfig = (options.storageConfig ?? config.storage) as StorageConfig
+        const directory = normalizeDirectory(options.directory)
+        const contentType = options.contentType ?? DEFAULT_CONTENT_TYPE
+
+        if (storageConfig.provider === 'eagle') {
+          logger.thumbnail.warn('缩略图上传插件不支持 Eagle 存储提供商，已自动禁用。')
+          externalStorageManager = null
+          resolved = {
+            directory,
+            remotePrefix: '',
+            contentType,
+            useDefaultStorage: !options.storageConfig,
+            storageConfig: null,
+            enabled: false,
+          }
+          return
+        }
+
+        const uploadableConfig = storageConfig as UploadableStorageConfig
+        const remotePrefix = resolveRemotePrefix(uploadableConfig, directory)
+
+        resolved = {
+          directory,
+          remotePrefix,
+          contentType,
+          useDefaultStorage: !options.storageConfig,
+          storageConfig: uploadableConfig,
+          enabled: true,
+        }
+
+        if (!options.storageConfig) {
+          builder.getStorageManager().addExcludePrefix(remotePrefix)
+        } else {
+          externalStorageManager = new StorageManager(uploadableConfig)
+        }
+      },
+      afterPhotoProcess: async ({ builder, payload, runShared, logger }) => {
+        if (!resolved) {
+          logger.main.warn('Thumbnail storage plugin is not initialized correctly. Skipping upload.')
+          return
+        }
+
+        if (!resolved.enabled) {
+          return
+        }
+
+        const data = payload.context.pluginData[THUMBNAIL_PLUGIN_DATA_KEY] as ThumbnailPluginData | undefined
+
+        if (!data || !data.buffer || !payload.result.item) {
+          return
+        }
+
+        const storageManager = resolved.useDefaultStorage ? builder.getStorageManager() : externalStorageManager
+
+        if (!storageManager) {
+          logger.main.warn('Thumbnail storage plugin could not resolve storage manager. Skipping upload.')
+          return
+        }
+
+        const remoteKey = joinSegments(resolved.remotePrefix, data.fileName)
+        const state = getOrCreateRunState(runShared)
+
+        if (!state.uploaded.has(remoteKey)) {
+          try {
+            await storageManager.uploadFile(remoteKey, data.buffer, {
+              contentType: resolved.contentType,
+            })
+            state.uploaded.add(remoteKey)
+          } catch (error) {
+            logger.thumbnail.error(`上传缩略图失败：${remoteKey}`, error)
+            return
+          }
+        }
+
+        let remoteUrl = state.urlCache.get(remoteKey)
+        if (!remoteUrl) {
+          try {
+            remoteUrl = await storageManager.generatePublicUrl(remoteKey)
+            state.urlCache.set(remoteKey, remoteUrl)
+          } catch (error) {
+            logger.thumbnail.error(`生成缩略图 URL 失败：${remoteKey}`, error)
+            return
+          }
+        }
+
+        payload.result.item.thumbnailUrl = remoteUrl
+      },
+    },
+  }
+}
+
+export type { ThumbnailStoragePluginOptions }
diff --git a/packages/builder/src/plugins/thumbnail-storage/shared.ts b/packages/builder/src/plugins/thumbnail-storage/shared.ts
new file mode 100644
index 00000000..95ee4e09
--- /dev/null
+++ b/packages/builder/src/plugins/thumbnail-storage/shared.ts
@@ -0,0 +1,10 @@
+import type { Buffer } from 'node:buffer'
+
+export const THUMBNAIL_PLUGIN_DATA_KEY = 'afilmory:thumbnail-storage:data'
+
+export interface ThumbnailPluginData {
+  photoId: string
+  fileName: string
+  buffer: Buffer | null
+  localUrl: string | null
+}
diff --git a/packages/builder/src/storage/manager.ts b/packages/builder/src/storage/manager.ts
index 38c8c359..bcd9b271 100644
--- a/packages/builder/src/storage/manager.ts
+++ b/packages/builder/src/storage/manager.ts
@@ -3,11 +3,24 @@ import type { StorageConfig, StorageObject, StorageProvider, StorageUploadOption
 
 export class StorageManager {
   private provider: StorageProvider
+  private readonly excludeFilters: Array<(key: string) => boolean> = []
 
   constructor(config: StorageConfig) {
     this.provider = StorageFactory.createProvider(config)
   }
 
+  private applyExcludes<T extends StorageObject>(objects: T[]): T[] {
+    if (this.excludeFilters.length === 0) {
+      return objects
+    }
+
+    return objects.filter((obj) => {
+      const { key } = obj
+      if (!key) return true
+      return !this.excludeFilters.some((filter) => filter(key))
+    })
+  }
+
   /**
    * 从存储中获取文件
    * @param key 文件的键值/路径
@@ -23,7 +36,8 @@ export class StorageManager {
    * @returns 图片文件对象数组
    */
   async listImages(): Promise<StorageObject[]> {
-    return this.provider.listImages()
+    const objects = await this.provider.listImages()
+    return this.applyExcludes(objects)
   }
 
   /**
@@ -31,7 +45,8 @@ export class StorageManager {
    * @returns 所有文件对象数组
    */
   async listAllFiles(): Promise<StorageObject[]> {
-    return this.provider.listAllFiles()
+    const objects = await this.provider.listAllFiles()
+    return this.applyExcludes(objects)
   }
 
   /**
@@ -49,8 +64,9 @@ export class StorageManager {
    * @returns Live Photo 配对映射 (图片 key -> 视频对象)
    */
   async detectLivePhotos(allObjects?: StorageObject[]): Promise<Map<string, StorageObject>> {
-    const objects = allObjects || (await this.listAllFiles())
-    return this.provider.detectLivePhotos(objects)
+    const sourceObjects = allObjects ?? (await this.provider.listAllFiles())
+    const filtered = this.applyExcludes(sourceObjects)
+    return this.provider.detectLivePhotos(filtered)
   }
 
   async deleteFile(key: string): Promise<void> {
@@ -61,6 +77,20 @@ export class StorageManager {
     return await this.provider.uploadFile(key, data, options)
   }
 
+  addExcludeFilter(filter: (key: string) => boolean): void {
+    this.excludeFilters.push(filter)
+  }
+
+  addExcludePrefix(prefix: string): void {
+    const normalized = prefix.replaceAll('\\', '/').replace(/^\/+/, '')
+    if (!normalized) {
+      return
+    }
+
+    const effectivePrefix = normalized.endsWith('/') ? normalized : `${normalized}/`
+    this.addExcludeFilter((key) => key.startsWith(effectivePrefix))
+  }
+
   /**
    * 获取当前使用的存储提供商
    * @returns 存储提供商实例