diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 53f445be1..1b497d70d 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "core-js": "^3.8.3",
+        "cropperjs": "^1.6.2",
         "echarts": "^5.6.0",
         "ldrs": "^1.1.7",
         "markdown-it": "^14.1.0",
@@ -4434,6 +4435,12 @@
         "node": ">=10"
       }
     },
+    "node_modules/cropperjs": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/cropperjs/-/cropperjs-1.6.2.tgz",
+      "integrity": "sha512-nhymn9GdnV3CqiEHJVai54TULFAE3VshJTXSqSJKa8yXAKyBKDWdhHarnlIPrshJ0WMFTGuFvG02YjLXfPiuOA==",
+      "license": "MIT"
+    },
     "node_modules/cross-spawn": {
       "version": "6.0.6",
       "resolved": "https://registry.npmmirror.com/cross-spawn/-/cross-spawn-6.0.6.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index ed41c14b4..372208730 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -9,6 +9,7 @@
   },
   "dependencies": {
     "core-js": "^3.8.3",
+    "cropperjs": "^1.6.2",
     "echarts": "^5.6.0",
     "ldrs": "^1.1.7",
     "markdown-it": "^14.1.0",
diff --git a/frontend/src/components/AvatarCropper.vue b/frontend/src/components/AvatarCropper.vue
new file mode 100644
index 000000000..2cb0a1d62
--- /dev/null
+++ b/frontend/src/components/AvatarCropper.vue
@@ -0,0 +1,142 @@
+<template>
+  <div v-if="show" class="cropper-modal">
+    <div class="cropper-body">
+      <div class="cropper-wrapper">
+        <img ref="image" :src="src" alt="to crop" />
+      </div>
+      <div class="cropper-actions">
+        <button class="cropper-btn" @click="$emit('close')">取消</button>
+        <button class="cropper-btn primary" @click="onConfirm">确定</button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import Cropper from 'cropperjs'
+import 'cropperjs/dist/cropper.css'
+
+export default {
+  name: 'AvatarCropper',
+  props: {
+    src: {
+      type: String,
+      required: true
+    },
+    show: {
+      type: Boolean,
+      default: false
+    }
+  },
+  emits: ['close', 'crop'],
+  data() {
+    return { cropper: null }
+  },
+  watch: {
+    show(val) {
+      if (val) {
+        this.$nextTick(() => this.init())
+      } else {
+        this.destroy()
+      }
+    }
+  },
+  mounted() {
+    if (this.show) {
+      this.init()
+    }
+  },
+  methods: {
+    init() {
+      const image = this.$refs.image
+      this.cropper = new Cropper(image, {
+        aspectRatio: 1,
+        viewMode: 1,
+        autoCropArea: 1,
+        responsive: true
+      })
+    },
+    destroy() {
+      if (this.cropper) {
+        this.cropper.destroy()
+        this.cropper = null
+      }
+    },
+    onConfirm() {
+      if (!this.cropper) return
+      this.cropper.getCroppedCanvas({ width: 256, height: 256 }).toBlob(blob => {
+        const file = new File([blob], 'avatar.png', { type: 'image/png' })
+        const url = URL.createObjectURL(blob)
+        this.$emit('crop', { file, url })
+        this.$emit('close')
+        this.destroy()
+      })
+    }
+  }
+}
+</script>
+
+<style scoped>
+.cropper-modal {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: rgba(0, 0, 0, 0.8);
+  opacity: 1.0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+.cropper-body {
+  background: var(--background-color);
+  padding: 10px;
+  border-radius: 6px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.cropper-wrapper {
+  width: 80vw;
+  height: 80vw;
+  max-width: 400px;
+  max-height: 400px;
+}
+
+.cropper-wrapper img {
+  max-width: 100%;
+}
+
+.cropper-actions {
+  margin-top: 10px;
+  display: flex;
+  gap: 10px;
+}
+
+.cropper-btn {
+  padding: 6px 12px;
+  border-radius: 4px;
+  color: var(--primary-color);
+  border: none;
+  background: transparent;
+  cursor: pointer;
+}
+
+.cropper-btn.primary {
+  background: var(--primary-color);
+  color: var(--text-color);
+  border-color: var(--primary-color);
+}
+
+@media (min-width: 768px) {
+  .cropper-wrapper {
+    width: 400px;
+    height: 400px;
+  }
+}
+</style>
+
diff --git a/frontend/src/views/SettingsPageView.vue b/frontend/src/views/SettingsPageView.vue
index d52e5f86d..649543fa4 100644
--- a/frontend/src/views/SettingsPageView.vue
+++ b/frontend/src/views/SettingsPageView.vue
@@ -1,5 +1,11 @@
 <template>
   <div class="settings-page">
+    <AvatarCropper
+      :src="tempAvatar"
+      :show="showCropper"
+      @close="showCropper = false"
+      @crop="onCropped"
+    />
     <div v-if="isLoadingPage" class="loading-page">
       <l-hatch size="20" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
     </div>
@@ -58,11 +64,12 @@ import { API_BASE_URL, toast } from '../main'
 import { getToken, fetchCurrentUser, setToken } from '../utils/auth'
 import BaseInput from '../components/BaseInput.vue'
 import Dropdown from '../components/Dropdown.vue'
+import AvatarCropper from '../components/AvatarCropper.vue'
 import { hatch } from 'ldrs'
 hatch.register()
 export default {
   name: 'SettingsPageView',
-  components: { BaseInput, Dropdown },
+  components: { BaseInput, Dropdown, AvatarCropper },
   data() {
     return {
       username: '',
@@ -70,6 +77,8 @@ export default {
       usernameError: '',
       avatar: '',
       avatarFile: null,
+      tempAvatar: '',
+      showCropper: false,
       role: '',
       publishMode: 'DIRECT',
       passwordStrength: 'LOW',
@@ -100,15 +109,19 @@ export default {
   methods: {
     onAvatarChange(e) {
       const file = e.target.files[0]
-      this.avatarFile = file
       if (file) {
         const reader = new FileReader()
         reader.onload = () => {
-          this.avatar = reader.result
+          this.tempAvatar = reader.result
+          this.showCropper = true
         }
         reader.readAsDataURL(file)
       }
     },
+    onCropped({ file, url }) {
+      this.avatarFile = file
+      this.avatar = url
+    },
     fetchPublishModes() {
       return Promise.resolve([
         { id: 'DIRECT', name: '直接发布', icon: 'fas fa-bolt' },