diff --git a/src/pages/tabbar/my.vue b/src/pages/tabbar/my.vue
index 0aba858..7b8e245 100644
--- a/src/pages/tabbar/my.vue
+++ b/src/pages/tabbar/my.vue
@@ -87,6 +87,7 @@ import { hooks, router, constant } from "@@/index"
 import { actCancel, userApi } from "@@/api"
 import { isDevEnv } from "@/sheep/utils/app"
 import { APPENV } from "@/sheep/constant"
+import { ensureBizLogin } from "@/sheep/utils/request"
 
 import ModifyUser from "@@/components/modify-user.vue"
 
@@ -185,20 +186,11 @@ const login = {
 		}
 	},
 
-	// 诗画环境登录
+	// 诗画环境登录：走统一 ensureBizLogin，避免与请求拦截器各打一遍 /shjnsso
 	shihuaLogin: async () => {
 		const appInfo = await (window as any).CP2.getAppInfo()
 		if (appInfo.code == 0) return false
-
-		const userInfo = await (window as any).CP2.getUserInfo()
-		if (userInfo.code == 0) {
-			uni.showToast({ title: "获取诗画用户信息失败", icon: "none" })
-			return false
-		} else {
-			const { accountId, sessionId } = userInfo.data
-			return login.doLogin(1, "", accountId, sessionId)
-			// return login.doLogin(1, "", "67186e49d63fea141aad6772", "67186e49d63fea141aad6776")
-		}
+		return await ensureBizLogin()
 	},
 
 	// 浙政钉登录
diff --git a/src/sheep/utils/request.ts b/src/sheep/utils/request.ts
index eebbed1..a1e55cd 100644
--- a/src/sheep/utils/request.ts
+++ b/src/sheep/utils/request.ts
@@ -16,6 +16,10 @@ let isRefreshing = false // 是否正在刷新
 let failedQueue: any[] = [] // 队列存储发送失败的请求
 /** App.onLaunch 与页面 ensureBizLogin 并发时复用同一次浙政钉登录，避免双重 showLoading/getAuthCode */
 let zzdLoginPromise: Promise<"ok" | "sms" | "failed"> | null = null
+/** 拦截器 refreshToken、「我的」checkAppInfo、页面 ensureBizLogin 并发时复用同一次自动登录 */
+let autoLoginPromise: Promise<boolean> | null = null
+/** 诗画 /shjnsso 并发互斥（与浙政钉 zzdLoginPromise 对称） */
+let shLoginPromise: Promise<boolean> | null = null
 
 /**
  * 清除本地登录相关缓存（等价于「重装清 WebView」里最关键的几项）。
@@ -289,16 +293,21 @@ async function refreshToken(): Promise<any> {
 	return refreshTokenPromise
 }
 
-// 根据应用环境自动登录 返回登录结果
+// 根据应用环境自动登录 返回登录结果（全局互斥，避免清缓存后并发打多遍单点）
 const autoLogin = async (): Promise<boolean> => {
-	const appInfo = await getAppInfo()
-	// 浙政钉环境
-	if (appInfo == APPENV.ZZD) return await loginByZzd()
-	// 诗画环境
-	if (appInfo == APPENV.SH) return await loginBySh()
-
-	uni.showToast({ title: "app环境错误", icon: "none" })
-	return false
+	if (autoLoginPromise) return autoLoginPromise
+	autoLoginPromise = (async () => {
+		try {
+			const appInfo = await getAppInfo()
+			if (appInfo == APPENV.ZZD) return await loginByZzd()
+			if (appInfo == APPENV.SH) return await loginBySh()
+			uni.showToast({ title: "app环境错误", icon: "none" })
+			return false
+		} finally {
+			autoLoginPromise = null
+		}
+	})()
+	return autoLoginPromise
 }
 
 function isZzdNeedSmsVerify(data: unknown): data is { needSmsVerify: true; bindSessionId: string; displayName?: string } {
@@ -420,60 +429,68 @@ export async function tryZzdEntryLogin(): Promise<"ok" | "sms" | "failed"> {
 	return await zzdLoginCore()
 }
 
-// 诗画登录
+// 诗画登录（互斥：避免「我的」与请求拦截器各打一遍 /shjnsso）
 async function loginBySh(): Promise<boolean> {
-	try {
-		uni.showLoading({ title: "登录中...", mask: true })
-		sanitizeBizSession()
-
-		const userInfo = await (window as any).CP2.getUserInfo()
-		if (userInfo.code == 0 || !userInfo.data.accountId || !userInfo.data.sessionId) {
-			uni.showToast({ title: "获取诗画用户信息失败", icon: "none" })
-			return false
-		}
-
-		const { accountId, sessionId } = userInfo.data
-		const response = await userApi.authsh({ accountId, sessionId })
-		// const response = await userApi.authsh({ accountId: "67e790d6a95d5a7b507e53dd", sessionId: "68215b03a95d5a4899d20cb4" }) // 测试
-
-		if (response.code == 0) {
-			const at = response.data?.accessToken
-			// 统一成可被 getTokenValue 识别的结构，避免只落了字符串导致后续读不到
-			if (typeof at === "string") {
-				uni.setStorageSync(TOKEN_KEY, { accessToken: { tokenValue: at } })
-			} else {
-				uni.setStorageSync(TOKEN_KEY, { accessToken: at })
+	if (shLoginPromise) return shLoginPromise
+	shLoginPromise = (async () => {
+		try {
+			uni.showLoading({ title: "登录中...", mask: true })
+			sanitizeBizSession()
+			const tokenStorage = uni.getStorageSync(TOKEN_KEY)
+			if (hasUsableBizToken(tokenStorage)) {
+				return true
 			}
-			const { data: userData } = await userApi.userInfo()
-			uni.setStorageSync(USER_INFO_KEY, userData)
-			uni.showToast({ title: "登录成功", icon: "none" })
-			return true
-		} else {
-			clearBizSession()
-			if (response.msg == "token已失效") {
-				uni.showToast({ title: "用户凭证已失效，请退出并重新进入智慧后勤应用", icon: "none", duration: 6000 })
+
+			const userInfo = await (window as any).CP2.getUserInfo()
+			if (userInfo.code == 0 || !userInfo.data.accountId || !userInfo.data.sessionId) {
+				uni.showToast({ title: "获取诗画用户信息失败", icon: "none" })
 				return false
 			}
 
-			// 设备未信任：后端 R.failed(-1, msg) 业务码在 code，data 为 null
-			if (response.code == -1) {
-				uni.setStorageSync(TOKEN_KEY, { data: -1 })
-			}
+			const { accountId, sessionId } = userInfo.data
+			const response = await userApi.authsh({ accountId, sessionId })
 
-			uni.showToast({ title: response.msg || "登录失败", icon: "none" })
+			if (response.code == 0) {
+				const at = response.data?.accessToken
+				// 统一成可被 getTokenValue 识别的结构，避免只落了字符串导致后续读不到
+				if (typeof at === "string") {
+					uni.setStorageSync(TOKEN_KEY, { accessToken: { tokenValue: at } })
+				} else {
+					uni.setStorageSync(TOKEN_KEY, { accessToken: at })
+				}
+				const { data: userData } = await userApi.userInfo()
+				uni.setStorageSync(USER_INFO_KEY, userData)
+				uni.showToast({ title: "登录成功", icon: "none" })
+				return true
+			} else {
+				clearBizSession()
+				if (response.msg == "token已失效") {
+					uni.showToast({ title: "用户凭证已失效，请退出并重新进入智慧后勤应用", icon: "none", duration: 6000 })
+					return false
+				}
+
+				// 设备未信任：后端 R.failed(-1, msg) 业务码在 code，data 为 null
+				if (response.code == -1) {
+					uni.setStorageSync(TOKEN_KEY, { data: -1 })
+				}
+
+				uni.showToast({ title: response.msg || "登录失败", icon: "none" })
+				return false
+			}
+		} catch (error) {
+			clearBizSession()
+			uni.showToast({ title: "登录错误", icon: "none" })
 			return false
+		} finally {
+			try {
+				uni.hideLoading()
+			} catch {
+				/* ignore */
+			}
+			shLoginPromise = null
 		}
-	} catch (error) {
-		clearBizSession()
-		uni.showToast({ title: "登录错误", icon: "none" })
-		return false
-	} finally {
-		try {
-			uni.hideLoading()
-		} catch {
-			/* ignore */
-		}
-	}
+	})()
+	return shLoginPromise
 }
 
 /**
@@ -496,6 +513,8 @@ export async function ensureBizLogin(): Promise<boolean> {
 export async function recoverBizSession(): Promise<boolean> {
 	clearBizSession({ clearRole: true })
 	zzdLoginPromise = null
+	shLoginPromise = null
+	autoLoginPromise = null
 	refreshTokenPromise = null
 	isRefreshing = false
 	return await autoLogin()