diff --git a/backend/internal/handler/admin/proxy_handler.go b/backend/internal/handler/admin/proxy_handler.go
index 944f776e..ee5b706d 100644
--- a/backend/internal/handler/admin/proxy_handler.go
+++ b/backend/internal/handler/admin/proxy_handler.go
@@ -2,6 +2,7 @@ package admin
 
 import (
 	"strconv"
+	"strings"
 
 	"sub2api/internal/pkg/response"
 	"sub2api/internal/service"
@@ -112,12 +113,12 @@ func (h *ProxyHandler) Create(c *gin.Context) {
 	}
 
 	proxy, err := h.adminService.CreateProxy(c.Request.Context(), &service.CreateProxyInput{
-		Name:     req.Name,
-		Protocol: req.Protocol,
-		Host:     req.Host,
+		Name:     strings.TrimSpace(req.Name),
+		Protocol: strings.TrimSpace(req.Protocol),
+		Host:     strings.TrimSpace(req.Host),
 		Port:     req.Port,
-		Username: req.Username,
-		Password: req.Password,
+		Username: strings.TrimSpace(req.Username),
+		Password: strings.TrimSpace(req.Password),
 	})
 	if err != nil {
 		response.BadRequest(c, "Failed to create proxy: "+err.Error())
@@ -143,13 +144,13 @@ func (h *ProxyHandler) Update(c *gin.Context) {
 	}
 
 	proxy, err := h.adminService.UpdateProxy(c.Request.Context(), proxyID, &service.UpdateProxyInput{
-		Name:     req.Name,
-		Protocol: req.Protocol,
-		Host:     req.Host,
+		Name:     strings.TrimSpace(req.Name),
+		Protocol: strings.TrimSpace(req.Protocol),
+		Host:     strings.TrimSpace(req.Host),
 		Port:     req.Port,
-		Username: req.Username,
-		Password: req.Password,
-		Status:   req.Status,
+		Username: strings.TrimSpace(req.Username),
+		Password: strings.TrimSpace(req.Password),
+		Status:   strings.TrimSpace(req.Status),
 	})
 	if err != nil {
 		response.InternalError(c, "Failed to update proxy: "+err.Error())
@@ -263,8 +264,14 @@ func (h *ProxyHandler) BatchCreate(c *gin.Context) {
 	skipped := 0
 
 	for _, item := range req.Proxies {
+		// Trim all string fields
+		host := strings.TrimSpace(item.Host)
+		protocol := strings.TrimSpace(item.Protocol)
+		username := strings.TrimSpace(item.Username)
+		password := strings.TrimSpace(item.Password)
+
 		// Check for duplicates (same host, port, username, password)
-		exists, err := h.adminService.CheckProxyExists(c.Request.Context(), item.Host, item.Port, item.Username, item.Password)
+		exists, err := h.adminService.CheckProxyExists(c.Request.Context(), host, item.Port, username, password)
 		if err != nil {
 			response.InternalError(c, "Failed to check proxy existence: "+err.Error())
 			return
@@ -278,11 +285,11 @@ func (h *ProxyHandler) BatchCreate(c *gin.Context) {
 		// Create proxy with default name
 		_, err = h.adminService.CreateProxy(c.Request.Context(), &service.CreateProxyInput{
 			Name:     "default",
-			Protocol: item.Protocol,
-			Host:     item.Host,
+			Protocol: protocol,
+			Host:     host,
 			Port:     item.Port,
-			Username: item.Username,
-			Password: item.Password,
+			Username: username,
+			Password: password,
 		})
 		if err != nil {
 			// If creation fails due to duplicate, count as skipped
diff --git a/frontend/src/views/admin/ProxiesView.vue b/frontend/src/views/admin/ProxiesView.vue
index 65dbea55..736a774a 100644
--- a/frontend/src/views/admin/ProxiesView.vue
+++ b/frontend/src/views/admin/ProxiesView.vue
@@ -647,10 +647,10 @@ const parseProxyUrl = (line: string): {
 
   return {
     protocol: protocol.toLowerCase() as ProxyProtocol,
-    host,
+    host: host.trim(),
     port: portNum,
-    username: username || '',
-    password: password || ''
+    username: username?.trim() || '',
+    password: password?.trim() || ''
   }
 }
 
@@ -714,9 +714,12 @@ const handleCreateProxy = async () => {
   submitting.value = true
   try {
     await adminAPI.proxies.create({
-      ...createForm,
-      username: createForm.username || null,
-      password: createForm.password || null
+      name: createForm.name.trim(),
+      protocol: createForm.protocol,
+      host: createForm.host.trim(),
+      port: createForm.port,
+      username: createForm.username.trim() || null,
+      password: createForm.password.trim() || null
     })
     appStore.showSuccess(t('admin.proxies.proxyCreated'))
     closeCreateModal()
@@ -752,17 +755,18 @@ const handleUpdateProxy = async () => {
   submitting.value = true
   try {
     const updateData: any = {
-      name: editForm.name,
+      name: editForm.name.trim(),
       protocol: editForm.protocol,
-      host: editForm.host,
+      host: editForm.host.trim(),
       port: editForm.port,
-      username: editForm.username || null,
+      username: editForm.username.trim() || null,
       status: editForm.status
     }
 
     // Only include password if it was changed
-    if (editForm.password) {
-      updateData.password = editForm.password
+    const trimmedPassword = editForm.password.trim()
+    if (trimmedPassword) {
+      updateData.password = trimmedPassword
     }
 
     await adminAPI.proxies.update(editingProxy.value.id, updateData)