diff --git a/control/internal/service/device_video_sources.go b/control/internal/service/device_video_sources.go
new file mode 100644
index 0000000..d722009
--- /dev/null
+++ b/control/internal/service/device_video_sources.go
@@ -0,0 +1,82 @@
+package service
+
+import (
+    "encoding/json"
+    "fmt"
+    "strings"
+
+    "safesight-control/internal/models"
+)
+
+// VideoSourceStatus 设备上一个视频源（input_rtsp 节点）的运行状态。
+// 数据来自 edge /v1/graphs 节点快照的 custom_metrics（media 端 input_rtsp 上报）。
+type VideoSourceStatus struct {
+    GraphName     string  `json:"graph_name"`
+    NodeID        string  `json:"node_id"`
+    URL           string  `json:"url"`
+    Streaming     bool    `json:"streaming"`
+    Online        bool    `json:"online"`
+    InputFPS      float64 `json:"input_fps"`
+    FailCount     int64   `json:"fail_count"`
+    LastError     string  `json:"last_error"`
+    LastErrorAtMS int64   `json:"last_error_at_ms"`
+    LastOKAtMS    int64   `json:"last_ok_at_ms"`
+}
+
+// FetchVideoSourceStatus 调用 edge agent /v1/graphs，解析所有 input_rtsp 节点的
+// 拉流状态（在线/离线/失败原因）。设备离线或接口不可用时返回 error。
+func FetchVideoSourceStatus(agent *AgentClient, device *models.Device) ([]VideoSourceStatus, error) {
+    if agent == nil || device == nil || strings.TrimSpace(device.IP) == "" || device.AgentPort <= 0 {
+        return nil, nil
+    }
+    body, status, err := agent.Do("GET", device.IP, device.AgentPort, "/v1/graphs", nil)
+    if err != nil {
+        return nil, err
+    }
+    if status != 200 {
+        return nil, fmt.Errorf("agent returned status %d", status)
+    }
+    var graphs []struct {
+        Name    string `json:"name"`
+        Running bool   `json:"running"`
+        Nodes   []struct {
+            ID       string  `json:"id"`
+            Type     string  `json:"type"`
+            InputFPS float64 `json:"input_fps"`
+            CustomMetrics struct {
+                Type         string  `json:"type"`
+                URL          string  `json:"url"`
+                Streaming    bool    `json:"streaming"`
+                FailCount    float64 `json:"fail_count"`
+                LastError    string  `json:"last_error"`
+                LastErrorAtMS float64 `json:"last_error_at_ms"`
+                LastOKAtMS   float64 `json:"last_ok_at_ms"`
+            } `json:"custom_metrics"`
+        } `json:"nodes"`
+    }
+    if err := json.Unmarshal(body, &graphs); err != nil {
+        return nil, err
+    }
+
+    var out []VideoSourceStatus
+    for _, g := range graphs {
+        for _, n := range g.Nodes {
+            if n.Type != "input_rtsp" {
+                continue
+            }
+            out = append(out, VideoSourceStatus{
+                GraphName:     g.Name,
+                NodeID:        n.ID,
+                URL:           n.CustomMetrics.URL,
+                Streaming:     n.CustomMetrics.Streaming,
+                Online:        n.CustomMetrics.Streaming,
+                InputFPS:      n.InputFPS,
+                FailCount:     int64(n.CustomMetrics.FailCount),
+                LastError:     n.CustomMetrics.LastError,
+                LastErrorAtMS: int64(n.CustomMetrics.LastErrorAtMS),
+                LastOKAtMS:    int64(n.CustomMetrics.LastOKAtMS),
+            })
+        }
+    }
+    return out, nil
+}
diff --git a/control/internal/web/ui.go b/control/internal/web/ui.go
index 3c77571..e5ecf40 100644
--- a/control/internal/web/ui.go
+++ b/control/internal/web/ui.go
@@ -144,6 +144,8 @@ type PageData struct {
     DeviceResourceStatuses  []service.InstalledResourceStatus
     DeviceVersion           *service.DeviceVersionInfo
     DeviceVersionErr        string
+    VideoSources            []service.VideoSourceStatus
+    VideoSourceErr          string
     Templates                []service.Template
     Template                 *service.Template
     AssetTab                 string
@@ -2024,6 +2026,11 @@ func (u *UI) deviceDetailPageData(dev *models.Device) PageData {
         } else {
             data.DeviceVersionErr = err.Error()
         }
+        if vs, err := service.FetchVideoSourceStatus(u.agent, dev); err == nil {
+            data.VideoSources = vs
+        } else {
+            data.VideoSourceErr = err.Error()
+        }
         if items, err := service.FetchInstalledModelStatuses(u.agent, dev); err == nil {
             data.DeviceModelStatuses = items
         }
diff --git a/control/internal/web/ui/assets/style.css b/control/internal/web/ui/assets/style.css
index 127152f..b36a477 100644
--- a/control/internal/web/ui/assets/style.css
+++ b/control/internal/web/ui/assets/style.css
@@ -478,3 +478,9 @@ body[data-mode=expert] .mode-track{background:var(--primary-strong);border-color
 .mode-thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:var(--sidebar-text);transition:transform .16s ease}
 body[data-mode=expert] .mode-thumb{transform:translateX(16px)}
 body:not([data-mode=expert]) .expert-only{display:none}
+
+/* 视频源状态（设备详情页） */
+.video-source-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
+.video-source-item{padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-soft)}
+.video-source-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:4px}
+.video-source-error{margin-top:6px;padding:6px 8px;border-radius:var(--radius);background:rgba(220,53,69,.08);color:var(--danger);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
diff --git a/control/internal/web/ui/templates/device.html b/control/internal/web/ui/templates/device.html
index b6f8fa6..3311e50 100644
--- a/control/internal/web/ui/templates/device.html
+++ b/control/internal/web/ui/templates/device.html
@@ -115,6 +115,23 @@
     <div class="info-list compact-list">
       <div><span>媒体服务</span><strong>{{if and .ConfigStatus .ConfigStatus.MediaServer.Running}}运行中{{else}}{{if .ConfigStatus.MediaServer.LastError}}{{.ConfigStatus.MediaServer.LastError}}{{else}}状态未知{{end}}{{end}}</strong></div>
     </div>
+    {{if .VideoSources}}
+    <div class="video-source-list">
+      {{range .VideoSources}}
+      <div class="video-source-item">
+        <div class="video-source-head">
+          <strong>{{.GraphName}}</strong>
+          {{if .Streaming}}<span class="pill ok">在线</span>{{else}}<span class="pill bad">离线</span>{{end}}
+        </div>
+        <div class="mono small muted" title="{{.URL}}">{{.URL}}</div>
+        {{if .LastError}}<div class="video-source-error" title="{{.LastError}}">⚠ {{.LastError}}</div>{{end}}
+        {{if not .LastError}}<div class="muted small">帧率 {{printf "%.1f" .InputFPS}} fps{{if gt .FailCount 0}} · 历史失败 {{.FailCount}} 次{{end}}</div>{{end}}
+      </div>
+      {{end}}
+    </div>
+    {{else if .VideoSourceErr}}
+    <div class="muted small" style="padding:8px 0">视频源状态获取失败：{{.VideoSourceErr}}</div>
+    {{end}}
     <div class="actions service-actions-row">
       <form method="post" action="/devices/{{.Device.DeviceID}}/action">
         <input type="hidden" name="action" value="media_start" />