diff --git a/frontend/pages/profile/setNickname.vue b/frontend/pages/profile/setNickname.vue
index f457b2e..83bfab6 100644
--- a/frontend/pages/profile/setNickname.vue
+++ b/frontend/pages/profile/setNickname.vue
@@ -51,10 +51,13 @@
 
 <script setup>
 import { ref } from 'vue';
+import { useStore } from 'vuex';
 import Avatar from '../components/Avatar.vue';
 import { checkNicknameApi } from '@/utils/api.js';
 import { validateNickname } from '@/utils/validator.js';
 
+const store = useStore();
+
 // 响应式数据
 const nickname = ref('');
 const errorMessage = ref('');
@@ -127,16 +130,81 @@ const handleNext = async () => {
 		// 	url: '/pages/welcome/welcome'
 		// });
 
-		// 跳转到粉丝身份选择页面
-		uni.navigateTo({
-			url: '/pages/profile/selectRole'
+		// // 跳转到粉丝身份选择页面
+		// uni.navigateTo({
+		// 	url: '/pages/profile/selectRole'
+		// });
+
+		// 获取临时存储的注册信息
+		const mobile = uni.getStorageSync('temp_register_mobile');
+		const password = uni.getStorageSync('temp_register_password');
+		const star_id = 87; // 默认身份
+
+		// 验证数据完整性
+		if (!mobile || !password || !trimmedNickname || !star_id) {
+			uni.showToast({
+				title: '注册信息不完整，请重新注册',
+				icon: 'none'
+			});
+			uni.removeStorageSync('temp_register_mobile');
+			uni.removeStorageSync('temp_register_password');
+			uni.removeStorageSync('temp_register_nickname');
+			setTimeout(() => {
+				uni.reLaunch({
+					url: '/pages/register/register'
+				});
+			}, 1500);
+			isChecking.value = false;
+			return;
+		}
+
+		// 显示加载提示
+		uni.showLoading({
+			title: '注册中...',
+			mask: true
 		});
+
+		// 调用注册 API
+		await store.dispatch('user/register', {
+			mobile,
+			password,
+			star_id,
+			nickname: trimmedNickname
+		});
+
+		uni.hideLoading();
+
+		// 清除临时数据
+		uni.removeStorageSync('temp_register_mobile');
+		uni.removeStorageSync('temp_register_password');
+		uni.removeStorageSync('temp_register_nickname');
+
+		// 设置新用户标记
+		uni.setStorageSync('is_new_user', true);
+
+		// 跳转到主页
+		uni.reLaunch({
+			url: '/pages/square/square'
+		});
+
 	} catch (error) {
-		errorMessage.value = error.message || '操作失败，请重试';
-		uni.showToast({
-			title: errorMessage.value,
-			icon: 'none'
-		});
+		uni.hideLoading();
+
+		// 处理昵称已存在的情况（409错误）
+		if (error.code === 409 || error.message.includes('昵称') || error.message.includes('已存在')) {
+			uni.showModal({
+				title: '昵称已存在',
+				content: '该昵称已被使用，请返回修改昵称',
+				showCancel: false,
+				confirmText: '知道了'
+			});
+		} else {
+			errorMessage.value = error.message || '注册失败，请重试';
+			uni.showToast({
+				title: errorMessage.value,
+				icon: 'none'
+			});
+		}
 	} finally {
 		isChecking.value = false;
 	}