diff --git a/netx_api/main.py b/netx_api/main.py
index 6859222..546d370 100644
--- a/netx_api/main.py
+++ b/netx_api/main.py
@@ -653,6 +653,7 @@ def ume_list_alarms(
     severity: str | None = Query(default=None),
     is_cleared: str | None = Query(default=None),
     ne_id: str | None = Query(default=None),
+    host_name: str | None = Query(default=None),
     keyword: str | None = Query(default=None),
     page: int = Query(default=1, ge=1),
     page_size: int = Query(default=50, ge=1, le=500),
@@ -667,6 +668,9 @@ def ume_list_alarms(
         stmt = stmt.filter(UmeAlarmCurrent.is_cleared == str(is_cleared).strip())
     if ne_id and str(ne_id).strip():
         stmt = stmt.filter(UmeAlarmCurrent.ne_id == str(ne_id).strip())
+    hn = str(host_name or "").strip()
+    if hn:
+        stmt = stmt.filter(UmeInventoryNE.host_name.contains(hn))
     kw = str(keyword or "").strip()
     if kw:
         stmt = stmt.filter(
diff --git a/web/src/pages/UmePage.tsx b/web/src/pages/UmePage.tsx
index 0ecdac5..89328bc 100644
--- a/web/src/pages/UmePage.tsx
+++ b/web/src/pages/UmePage.tsx
@@ -23,7 +23,7 @@ export function UmePage() {
 
   const [curSeverity, setCurSeverity] = useState("");
   const [curCleared, setCurCleared] = useState("");
-  const [curNeId, setCurNeId] = useState("");
+  const [curHostName, setCurHostName] = useState("");
   const [curKeyword, setCurKeyword] = useState("");
   const [curPage, setCurPage] = useState(1);
   const [curPageSize, setCurPageSize] = useState(50);
@@ -92,12 +92,12 @@ export function UmePage() {
     staleTime: 5000,
   });
   const currentQuery = useQuery({
-    queryKey: ["umeCurrentAlarms", curSeverity, curCleared, curNeId, curKeyword, curPage, curPageSize],
+    queryKey: ["umeCurrentAlarms", curSeverity, curCleared, curHostName, curKeyword, curPage, curPageSize],
     queryFn: () =>
       fetchUmeCurrentAlarms({
         severity: curSeverity,
         isCleared: curCleared,
-        neId: curNeId,
+        hostName: curHostName,
         keyword: curKeyword,
         page: curPage,
         pageSize: curPageSize,
@@ -419,7 +419,7 @@ export function UmePage() {
             placeholder="keyword(告警键/原因/ne_name/host_name/ip 等)"
             onChange={(e) => setCurKeyword(e.target.value)}
           />
-          <input value={curNeId} placeholder="ne_id" onChange={(e) => setCurNeId(e.target.value)} />
+          <input value={curHostName} placeholder="host_name（含匹配）" onChange={(e) => setCurHostName(e.target.value)} />
           <select value={curSeverity} onChange={(e) => setCurSeverity(e.target.value)}>
             <option value="">全部级别</option>
             <option value="critical">critical</option>
@@ -435,15 +435,15 @@ export function UmePage() {
           </select>
           <button
             type="button"
-            title="清空 keyword、ne_id、级别、is_cleared，回到第 1 页"
+            title="清空 keyword、host_name、级别、is_cleared，回到第 1 页"
             onClick={() => {
               setCurKeyword("");
-              setCurNeId("");
+              setCurHostName("");
               setCurSeverity("");
               setCurCleared("");
               setCurPage(1);
             }}
-            disabled={!curKeyword.trim() && !curNeId.trim() && !curSeverity && !curCleared}
+            disabled={!curKeyword.trim() && !curHostName.trim() && !curSeverity && !curCleared}
           >
             清除筛选
           </button>
@@ -464,19 +464,27 @@ export function UmePage() {
               <tr key={x.alarm_key}>
                 <td>{x.time_created}</td>
                 <td>{x.perceived_severity}</td>
+                <td>{x.ne_id}</td>
                 <td>
-                  <button
-                    className="link-btn"
-                    onClick={() => {
-                      setCurNeId(x.ne_id || "");
-                      setCurKeyword(x.ne_name || x.host_name || x.native_probable_cause || "");
-                      setCurPage(1);
-                    }}
-                  >
-                    {x.ne_id}
-                  </button>
+                  {(x.host_name || "").trim() ? (
+                    <button
+                      className="link-btn"
+                      type="button"
+                      onClick={() => {
+                        setCurHostName(x.host_name || "");
+                        setCurKeyword("");
+                        setCurPage(1);
+                      }}
+                      title="按该主机名筛选"
+                    >
+                      {x.host_name}
+                    </button>
+                  ) : (
+                    <span className="muted" title="无 host_name（需先同步网元）">
+                      -
+                    </span>
+                  )}
                 </td>
-                <td>{x.host_name ?? ""}</td>
                 <td>{x.ne_type ?? ""}</td>
                 <td>{x.native_probable_cause}</td>
               </tr>
diff --git a/web/src/services/api.ts b/web/src/services/api.ts
index d63dcaa..673ccc1 100644
--- a/web/src/services/api.ts
+++ b/web/src/services/api.ts
@@ -121,7 +121,7 @@ export const fetchUmeNe = (params: { keyword: string; page: number; pageSize: nu
 export const fetchUmeCurrentAlarms = (params: {
   severity: string;
   isCleared: string;
-  neId: string;
+  hostName: string;
   keyword: string;
   page: number;
   pageSize: number;
@@ -129,7 +129,7 @@ export const fetchUmeCurrentAlarms = (params: {
   const p = new URLSearchParams();
   if (params.severity) p.set("severity", params.severity);
   if (params.isCleared) p.set("is_cleared", params.isCleared);
-  if (params.neId) p.set("ne_id", params.neId);
+  if (params.hostName) p.set("host_name", params.hostName);
   if (params.keyword) p.set("keyword", params.keyword);
   p.set("page", String(Math.max(1, Number(params.page || 1))));
   p.set("page_size", String(Math.max(1, Math.min(500, Number(params.pageSize || 50)))));