diff --git a/frontend/app/features/platform/ModelPlatformApp.tsx b/frontend/app/features/platform/ModelPlatformApp.tsx
index 32eb641..b123fbb 100644
--- a/frontend/app/features/platform/ModelPlatformApp.tsx
+++ b/frontend/app/features/platform/ModelPlatformApp.tsx
@@ -131,6 +131,7 @@ function AuthenticatedModelPlatformApp() {
   const [scripts, setScripts] = useState<ScriptItem[]>([]);
   const [directories, setDirectories] = useState<WorkspaceDirectory[]>([]);
   const [selectedId, setSelectedId] = useState<string | null>(null);
+  const [openTabIds, setOpenTabIds] = useState<string[]>([]);
   const [keyword, setKeyword] = useState("");
   const [loading, setLoading] = useState(true);
   const [refreshing, setRefreshing] = useState(false);
@@ -377,12 +378,52 @@ function AuthenticatedModelPlatformApp() {
   const selected = scripts.find((item) => item.script_id === selectedId) ?? null;
 
   const selectScript = (scriptId: string | null) => {
+    setSelectedId(scriptId);
+  };
+
+  const openTab = (scriptId: string) => {
     if (selectedIdRef.current !== scriptId) {
       editorOpenRequestRef.current += 1;
       setEditorOpenError(null);
     }
     selectedIdRef.current = scriptId;
     setSelectedId(scriptId);
+    setOpenTabIds((current) => {
+      if (current.includes(scriptId)) {
+        return current;
+      }
+      return [...current, scriptId];
+    });
+  };
+
+  const closeTab = async (scriptId: string, event?: ReactMouseEvent) => {
+    event?.stopPropagation();
+
+    // 如果关闭的是正在编辑的脚本，先释放编辑锁
+    if (editSessionRef.current?.script_id === scriptId) {
+      await endEditing(false, false);
+    }
+
+    setOpenTabIds((current) => {
+      const index = current.indexOf(scriptId);
+      if (index === -1) return current;
+      const newTabs = current.filter((id) => id !== scriptId);
+      if (selectedId === scriptId) {
+        const nextId = newTabs[index] ?? newTabs[index - 1] ?? null;
+        setSelectedId(nextId);
+        selectedIdRef.current = nextId;
+      }
+      return newTabs;
+    });
+  };
+
+  const switchTab = (scriptId: string) => {
+    if (selectedIdRef.current !== scriptId) {
+      editorOpenRequestRef.current += 1;
+      setEditorOpenError(null);
+    }
+    setSelectedId(scriptId);
+    selectedIdRef.current = scriptId;
   };
 
   const openScriptEditor = async (
@@ -503,12 +544,15 @@ function AuthenticatedModelPlatformApp() {
     selected?.script_type,
   ]);
 
-  const endEditing = async (closeTab = false, showToast = true) => {
+  const endEditing = async (closeTabFlag = true, showToast = true) => {
     editorOpenRequestRef.current += 1;
     setEditorOpenError(null);
     const active = editSessionRef.current;
+    const scriptId = active?.script_id;
     if (!active) {
-      if (closeTab) selectScript(null);
+      if (closeTabFlag && scriptId) {
+        void closeTab(scriptId);
+      }
       return;
     }
     setEditBusy(true);
@@ -517,7 +561,9 @@ function AuthenticatedModelPlatformApp() {
       setEmbeddedJupyterUrl(null);
       setEditSession(null);
       editSessionRef.current = null;
-      if (closeTab) selectScript(null);
+      if (closeTabFlag && scriptId) {
+        void closeTab(scriptId);
+      }
       if (showToast) {
         setToast({
           tone: "success",
@@ -613,7 +659,7 @@ function AuthenticatedModelPlatformApp() {
     try {
       const created = await api.createScript(form);
       setScripts((items) => [created, ...items]);
-      selectScript(created.script_id);
+      openTab(created.script_id);
       setCreateOpen(false);
       setForm(initialForm);
       setToast({
@@ -958,7 +1004,7 @@ function AuthenticatedModelPlatformApp() {
                       scripts={group.scripts}
                       directories={group.directories}
                       selectedId={selectedId}
-                      onSelect={selectScript}
+                      onSelect={openTab}
                       onContextMenu={
                         group.user?.user_id === user?.user_id
                           ? showContextMenu
@@ -1014,17 +1060,19 @@ function AuthenticatedModelPlatformApp() {
                 }
                 latestVersion={latestVersion}
                 versionsLoading={latestVersionLoading}
+                openTabs={openTabIds.map((id) => {
+                  const s = scripts.find((item) => item.script_id === id);
+                  return {
+                    scriptId: id,
+                    scriptName: s?.script_name ?? "未知",
+                    scriptType: s?.script_type ?? "notebook",
+                  };
+                })}
                 onOpenEditor={() => void openScriptEditor(selected)}
                 onEndEditing={() => void endEditing()}
-                onClose={() => {
-                  if (
-                    editSessionRef.current?.script_id === selected.script_id
-                  ) {
-                    void endEditing(true);
-                  } else {
-                    selectScript(null);
-                  }
-                }}
+                onClose={(scriptId, event) => void closeTab(scriptId, event)}
+                onSwitchTab={switchTab}
+                onNewTab={() => openCreateDialog("")}
                 onPublish={() => openPublishDialog(selected)}
                 onInfo={setToast}
               />
diff --git a/frontend/app/features/platform/ScriptWorkspace.tsx b/frontend/app/features/platform/ScriptWorkspace.tsx
index d73bb9e..b5150bb 100644
--- a/frontend/app/features/platform/ScriptWorkspace.tsx
+++ b/frontend/app/features/platform/ScriptWorkspace.tsx
@@ -3,8 +3,11 @@ import type {
   ActiveEditSession,
   LatestVersion,
   ScriptItem,
+  ScriptType,
 } from "../../services/api";
 import { scriptIcon } from "./WorkspaceTree";
+import type { MouseEvent as ReactMouseEvent } from "react";
+import { useRef, useEffect } from "react";
 
 type ToastState = {
   tone: "success" | "error" | "info";
@@ -19,9 +22,12 @@ type ScriptWorkspaceProps = {
   openError: string | null;
   latestVersion: LatestVersion | null;
   versionsLoading: boolean;
+  openTabs: Array<{ scriptId: string; scriptName: string; scriptType: ScriptType }>;
   onOpenEditor: () => void;
   onEndEditing: () => void;
-  onClose: () => void;
+  onClose: (scriptId: string, event?: ReactMouseEvent) => void;
+  onSwitchTab: (scriptId: string) => void;
+  onNewTab: () => void;
   onPublish: () => void;
   onInfo: (toast: ToastState) => void;
 };
@@ -91,32 +97,88 @@ export function ScriptWorkspace({
   openError,
   latestVersion,
   versionsLoading,
+  openTabs,
   onOpenEditor,
   onEndEditing,
   onClose,
+  onSwitchTab,
+  onNewTab,
   onPublish,
   onInfo,
 }: ScriptWorkspaceProps) {
+  const tabbarRef = useRef<HTMLDivElement | null>(null);
   const isNotebook = script.script_type === "notebook";
   const isEditing = editSession?.session_status === "active";
+
+  const scroll = (direction: "left" | "right") => {
+    const tabbar = tabbarRef.current;
+    if (!tabbar) return;
+    const scrollAmount = 200;
+    tabbar.scrollBy({
+      left: direction === "left" ? -scrollAmount : scrollAmount,
+      behavior: "smooth",
+    });
+  };
+
+  useEffect(() => {
+    const tabbar = tabbarRef.current;
+    if (!tabbar) return;
+    const activeTab = tabbar.querySelector(".editor-tab--active") as HTMLElement | null;
+    if (activeTab) {
+      const tabbarRect = tabbar.getBoundingClientRect();
+      const tabRect = activeTab.getBoundingClientRect();
+      if (tabRect.right > tabbarRect.right || tabRect.left < tabbarRect.left) {
+        activeTab.scrollIntoView({ behavior: "smooth", inline: "center" });
+      }
+    }
+  }, [script.script_id]);
+
   return (
     <>
       <div className="tabbar">
-        <div className="editor-tab editor-tab--active">
-          <span className={`file-icon file-icon--${script.script_type}`}>
-            <Icon name={scriptIcon(script)} size={16} />
-          </span>
-          <span>{script.script_name}</span>
-          <button type="button" aria-label="关闭标签" onClick={onClose}>
-            <Icon name="close" size={14} />
+        <button
+          className="tabbar-scroll-btn tabbar-scroll-btn--left"
+          type="button"
+          aria-label="向左滚动"
+          onClick={() => scroll("left")}
+        >
+          <Icon name="chevron" size={16} />
+        </button>
+        <div className="tabbar-scroll-content" ref={tabbarRef}>
+          {openTabs.map((tab) => (
+            <div
+              key={tab.scriptId}
+              className={`editor-tab${tab.scriptId === script.script_id ? " editor-tab--active" : ""}`}
+              onClick={() => onSwitchTab(tab.scriptId)}
+            >
+              <span className={`file-icon file-icon--${tab.scriptType}`}>
+                <Icon name={tab.scriptType === "notebook" ? "notebook" : "python"} size={16} />
+              </span>
+              <span>{tab.scriptName}</span>
+              <button
+                type="button"
+                aria-label="关闭标签"
+                onClick={(event) => onClose(tab.scriptId, event)}
+              >
+                <Icon name="close" size={14} />
+              </button>
+            </div>
+          ))}
+          <button
+            className="new-tab"
+            type="button"
+            onClick={onNewTab}
+          >
+            <Icon name="plus" size={17} />
           </button>
         </div>
         <button
-          className="new-tab"
+          className="tabbar-scroll-btn tabbar-scroll-btn--right"
           type="button"
-          onClick={() => onInfo({ tone: "info", message: "请从左侧选择或新建脚本" })}
+          aria-label="向右滚动"
+          onClick={() => scroll("right")}
         >
-          <Icon name="plus" size={17} />
+          <Icon name="chevron" size={16} />
         </button>
       </div>
 
diff --git a/frontend/app/styles/platform.css b/frontend/app/styles/platform.css
index 4181e9b..be1f662 100644
--- a/frontend/app/styles/platform.css
+++ b/frontend/app/styles/platform.css
@@ -822,20 +822,81 @@ button {
   align-items: stretch;
   border-bottom: 1px solid #e5ebf1;
   background: #f7f9fb;
+  overflow: hidden;
+  position: relative;
+}
+
+.tabbar-scroll-content {
+  display: flex;
+  flex: 1;
+  overflow-x: auto;
+  overflow-y: hidden;
+  scroll-behavior: smooth;
+}
+
+.tabbar-scroll-content::-webkit-scrollbar {
+  height: 6px;
+}
+
+.tabbar-scroll-content::-webkit-scrollbar-track {
+  background: #f1f3f5;
+}
+
+.tabbar-scroll-content::-webkit-scrollbar-thumb {
+  background: #c9d6e4;
+  border-radius: 3px;
+}
+
+.tabbar-scroll-content::-webkit-scrollbar-thumb:hover {
+  background: #a8b9ca;
+}
+
+.tabbar-scroll-btn {
+  display: grid;
+  width: 28px;
+  flex: 0 0 auto;
+  place-items: center;
+  border: 0;
+  border-right: 1px solid #e4eaf0;
+  color: #6b7c8f;
+  background: #f7f9fb;
+  cursor: pointer;
+  z-index: 1;
+  transition: background 0.15s ease;
+}
+
+.tabbar-scroll-btn--right {
+  border-right: 0;
+  border-left: 1px solid #e4eaf0;
+}
+
+.tabbar-scroll-btn:hover {
+  background: #edf1f5;
+  color: #3d4c5c;
+}
+
+.tabbar-scroll-btn--left {
+  transform: rotate(180deg);
 }
 
 .editor-tab {
   position: relative;
   display: flex;
-  min-width: 190px;
+  min-width: 100px;
   max-width: 290px;
   align-items: center;
-  gap: 8px;
-  padding: 0 11px;
+  gap: 6px;
+  padding: 0 6px;
   border-right: 1px solid #e4eaf0;
   color: #4b5c70;
   background: #fff;
+  cursor: pointer;
   font-size: 12px;
+  flex-shrink: 0;
+}
+
+.editor-tab:hover {
+  background: #f0f4f8;
 }
 
 .editor-tab--active::before {