diff --git a/docs/faq.md b/docs/faq.md
new file mode 100644
index 0000000..e72c8cb
--- /dev/null
+++ b/docs/faq.md
@@ -0,0 +1,21 @@
+## 在 TypeScript 中指定组件的类型
+
+```html
+<template>
+  <upload-to-ali ref="uploadToAli" v-model="url" />
+</template>
+<script lang="ts">
+// 需要引入这个
+// import { UploadToAliType } from '@femessage/upload-to-ali'
+export default {
+  data() {
+    return {
+      url: ''
+    }
+  },
+  mounted() {
+    (this.$refs.uploadToAli as UploadToAliType).dir = 'images/'
+  },
+}
+</script>
+```
diff --git a/package.json b/package.json
index c10ffd7..c9ac7b2 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
   "browser": {
     "./sfc": "src/upload-to-ali.vue"
   },
+  "types": "src/upload-to-ali.d.ts",
   "scripts": {
     "dev": "vue-styleguidist server",
     "test": "jest",
diff --git a/src/upload-to-ali.d.ts b/src/upload-to-ali.d.ts
new file mode 100644
index 0000000..c049df7
--- /dev/null
+++ b/src/upload-to-ali.d.ts
@@ -0,0 +1,90 @@
+import Vue, {VueConstructor} from 'vue'
+
+declare module '@femessage/upload-to-ali' {
+  class FemessageComponent extends Vue {
+    static install(vue: typeof Vue): void
+  }
+
+  type CombinedVueInstance<
+    Instance extends Vue,
+    Data,
+    Methods,
+    Computed,
+    Props
+  > = Data & Methods & Computed & Props & Instance
+
+  type ExtendedVue<
+    Instance extends Vue,
+    Data,
+    Methods,
+    Computed,
+    Props
+  > = VueConstructor<
+    CombinedVueInstance<Instance, Data, Methods, Computed, Props> & Vue
+  >
+
+  type Combined<Data, Methods, Computed, Props> = Data &
+    Methods &
+    Computed &
+    Props
+
+  type UploadToAliData = {
+    previewUrl: string
+
+    uploading: boolean
+
+    isHighlight: boolean
+  }
+
+  type UploadToAliMethods = {
+    selectFiles: () => void
+  }
+
+  type UploadToAliComputed = {
+    uploadList: any[]
+    canUpload: boolean
+    uploadRequest: (file: any) => Promise<string>
+  }
+
+  type UploadToAliProps = {
+    action: string
+    bucket: string
+    region: string
+    dir: string
+    customDomain: string
+    value: string | any[]
+    multiple: boolean
+    size: number
+    accept: string
+    timeout: number
+    disabled: boolean
+    max: number
+    compressOptions: {[key: string]: any}
+    uploadOptions: {[key: string]: any}
+    preview: boolean
+    tip: string
+    onClick: (url: string, isFile: boolean) => void
+    beforeUpload: (files: any[]) => Promise<any>
+    onOversize: (fileOvesize: any) => void
+    request: (file: any) => Promise<string>
+  }
+
+  type UploadToAli = Combined<
+    UploadToAliData,
+    UploadToAliMethods,
+    UploadToAliComputed,
+    UploadToAliProps
+  >
+
+  export interface UploadToAliType extends FemessageComponent, UploadToAli {}
+
+  const UploadToAliConstruction: ExtendedVue<
+    Vue,
+    UploadToAliData,
+    UploadToAliMethods,
+    UploadToAliComputed,
+    UploadToAliProps
+  >
+
+  export default UploadToAliConstruction
+}