diff --git a/src/components/proxy/proxy-group.tsx b/src/components/proxy/proxy-group.tsx
index 2638660..addca60 100644
--- a/src/components/proxy/proxy-group.tsx
+++ b/src/components/proxy/proxy-group.tsx
@@ -1,5 +1,6 @@
 import { useRef, useState } from "react";
-import { Virtuoso, VirtuosoHandle } from "react-virtuoso";
+import { useSWRConfig } from "swr";
+import { Virtuoso } from "react-virtuoso";
 import {
   Box,
   Collapse,
@@ -19,6 +20,7 @@ import {
 import { ApiType } from "../../services/types";
 import { updateProxy } from "../../services/api";
 import { getProfiles, patchProfile } from "../../services/cmds";
+import delayManager from "../../services/delay";
 import ProxyItem from "./proxy-item";
 
 interface Props {
@@ -26,13 +28,15 @@ interface Props {
 }
 
 const ProxyGroup = ({ group }: Props) => {
+  const { mutate } = useSWRConfig();
+
   const listRef = useRef<any>();
   const [open, setOpen] = useState(false);
   const [now, setNow] = useState(group.now);
 
   const proxies = group.all ?? [];
 
-  const onUpdate = async (name: string) => {
+  const onSelect = async (name: string) => {
     // can not call update
     if (group.type !== "Selector") {
       // Todo
@@ -80,6 +84,21 @@ const ProxyGroup = ({ group }: Props) => {
     }
   };
 
+  const onCheckAll = async () => {
+    let names = proxies.map((p) => p.name);
+
+    while (names.length) {
+      const list = names.slice(0, 10);
+      names = names.slice(10);
+
+      await Promise.all(
+        list.map((n) => delayManager.checkDelay(n, group.name))
+      );
+
+      mutate("getProxies");
+    }
+  };
+
   return (
     <>
       <ListItem button onClick={() => setOpen(!open)} dense>
@@ -104,7 +123,7 @@ const ProxyGroup = ({ group }: Props) => {
           <IconButton size="small" title="location" onClick={onLocation}>
             <MyLocationRounded />
           </IconButton>
-          <IconButton size="small" title="check">
+          <IconButton size="small" title="check" onClick={onCheckAll}>
             <NetworkCheckRounded />
           </IconButton>
         </Box>
@@ -116,10 +135,11 @@ const ProxyGroup = ({ group }: Props) => {
             totalCount={proxies.length}
             itemContent={(index) => (
               <ProxyItem
+                groupName={group.name}
                 proxy={proxies[index]}
                 selected={proxies[index].name === now}
                 sx={{ py: 0, pl: 4 }}
-                onClick={onUpdate}
+                onClick={onSelect}
               />
             )}
           />
@@ -132,10 +152,11 @@ const ProxyGroup = ({ group }: Props) => {
             {proxies.map((proxy) => (
               <ProxyItem
                 key={proxy.name}
+                groupName={group.name}
                 proxy={proxy}
                 selected={proxy.name === now}
                 sx={{ py: 0, pl: 4 }}
-                onClick={onUpdate}
+                onClick={onSelect}
               />
             ))}
           </List>
diff --git a/src/components/proxy/proxy-item.tsx b/src/components/proxy/proxy-item.tsx
index b8bb337..88d90cc 100644
--- a/src/components/proxy/proxy-item.tsx
+++ b/src/components/proxy/proxy-item.tsx
@@ -1,24 +1,51 @@
+import { useEffect, useState } from "react";
 import { CheckCircleOutlineRounded } from "@mui/icons-material";
 import {
   alpha,
+  Box,
   ListItem,
   ListItemButton,
   ListItemIcon,
   ListItemText,
+  styled,
   SxProps,
   Theme,
 } from "@mui/material";
 import { ApiType } from "../../services/types";
+import delayManager from "../../services/delay";
 
 interface Props {
+  groupName: string;
   proxy: ApiType.ProxyItem;
   selected: boolean;
   sx?: SxProps<Theme>;
   onClick?: (name: string) => void;
 }
 
+const Widget = styled(Box)(() => ({
+  padding: "4px 6px",
+  fontSize: 14,
+}));
+
 const ProxyItem = (props: Props) => {
-  const { proxy, selected, sx, onClick } = props;
+  const { groupName, proxy, selected, sx, onClick } = props;
+  const [delay, setDelay] = useState(-1);
+
+  useEffect(() => {
+    if (proxy) {
+      setDelay(delayManager.getDelay(proxy.name, groupName));
+    }
+  }, [proxy]);
+
+  const onDelay = (e: any) => {
+    e.preventDefault();
+    e.stopPropagation();
+
+    delayManager
+      .checkDelay(proxy.name, groupName)
+      .then((result) => setDelay(result))
+      .catch(() => setDelay(1e6));
+  };
 
   return (
     <ListItem sx={sx}>
@@ -27,9 +54,7 @@ const ProxyItem = (props: Props) => {
         selected={selected}
         onClick={() => onClick?.(proxy.name)}
         sx={[
-          {
-            borderRadius: 1,
-          },
+          { borderRadius: 1 },
           ({ palette: { mode, primary } }) => {
             const bgcolor =
               mode === "light"
@@ -37,7 +62,16 @@ const ProxyItem = (props: Props) => {
                 : alpha(primary.main, 0.35);
             const color = mode === "light" ? primary.main : primary.light;
 
+            const showDelay = delay > 0;
+            const showIcon = !showDelay && selected;
+
             return {
+              ".the-check": { display: "none" },
+              ".the-delay": { display: showDelay ? "block" : "none" },
+              ".the-icon": { display: showIcon ? "block" : "none" },
+              "&:hover .the-check": { display: !showDelay ? "block" : "none" },
+              "&:hover .the-delay": { display: showDelay ? "block" : "none" },
+              "&:hover .the-icon": { display: "none" },
               "&.Mui-selected": { bgcolor },
               "&.Mui-selected .MuiListItemText-secondary": { color },
             };
@@ -45,10 +79,32 @@ const ProxyItem = (props: Props) => {
         ]}
       >
         <ListItemText title={proxy.name} secondary={proxy.name} />
+
         <ListItemIcon
           sx={{ justifyContent: "flex-end", color: "primary.main" }}
         >
-          {selected && <CheckCircleOutlineRounded sx={{ fontSize: 16 }} />}
+          <Widget className="the-check" onClick={onDelay}>
+            Check
+          </Widget>
+
+          <Widget
+            className="the-delay"
+            onClick={onDelay}
+            color={
+              delay > 500
+                ? "error.main"
+                : delay < 100
+                ? "success.main"
+                : "text.secondary"
+            }
+          >
+            {delay > 1e5 ? "Error" : delay > 3000 ? "Timeout" : `${delay}ms`}
+          </Widget>
+
+          <CheckCircleOutlineRounded
+            className="the-icon"
+            sx={{ fontSize: 16 }}
+          />
         </ListItemIcon>
       </ListItemButton>
     </ListItem>
diff --git a/src/pages/proxies.tsx b/src/pages/proxies.tsx
index adb1892..c95b447 100644
--- a/src/pages/proxies.tsx
+++ b/src/pages/proxies.tsx
@@ -114,6 +114,7 @@ const ProxyPage = () => {
             totalCount={filterProxies.length}
             itemContent={(index) => (
               <ProxyItem
+                groupName="GLOBAL"
                 proxy={filterProxies[index]}
                 selected={filterProxies[index].name === curProxy}
                 onClick={onChangeProxy}
diff --git a/src/services/api.ts b/src/services/api.ts
index ad034cc..844c5e3 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -60,10 +60,24 @@ export async function getRules() {
   return instance.get("/rules") as Promise<ApiType.RuleItem[]>;
 }
 
+/// Get Proxy delay
+export async function getProxyDelay(
+  name: string,
+  url?: string
+): Promise<{ delay: number }> {
+  const params = {
+    timeout: 3000,
+    url: url || "http://www.gstatic.com/generate_204",
+  };
+
+  const instance = await getAxios();
+  return instance.get(`/proxies/${encodeURIComponent(name)}/delay`, { params });
+}
+
 /// Update the Proxy Choose
 export async function updateProxy(group: string, proxy: string) {
   const instance = await getAxios();
-  return instance.put(`/proxies/${group}`, { name: proxy });
+  return instance.put(`/proxies/${encodeURIComponent(group)}`, { name: proxy });
 }
 
 /// Get the Proxy infomation
diff --git a/src/services/delay.ts b/src/services/delay.ts
new file mode 100644
index 0000000..8b2b8f0
--- /dev/null
+++ b/src/services/delay.ts
@@ -0,0 +1,37 @@
+import { getProxyDelay } from "./api";
+
+const hashKey = (name: string, group: string) => `${group ?? ""}::${name}`;
+
+class DelayManager {
+  private cache = new Map<string, [number, number]>();
+
+  setDelay(name: string, group: string, delay: number) {
+    this.cache.set(hashKey(name, group), [Date.now(), delay]);
+  }
+
+  getDelay(name: string, group: string) {
+    if (!name) return -1;
+
+    const result = this.cache.get(hashKey(name, group));
+    if (result && Date.now() - result[0] <= 18e5) {
+      return result[1];
+    }
+    return -1;
+  }
+
+  async checkDelay(name: string, group: string) {
+    let delay = -1;
+
+    try {
+      const result = await getProxyDelay(name);
+      delay = result.delay;
+    } catch {
+      delay = 1e6; // error
+    }
+
+    this.setDelay(name, group, delay);
+    return delay;
+  }
+}
+
+export default new DelayManager();