diff --git a/apps/desktop/src/features/models/CursorModelEditor.tsx b/apps/desktop/src/features/models/CursorModelEditor.tsx
index d01d1d9..90e2ca0 100644
--- a/apps/desktop/src/features/models/CursorModelEditor.tsx
+++ b/apps/desktop/src/features/models/CursorModelEditor.tsx
@@ -1,3 +1,4 @@
+import { useRef } from "react";
 import type { ModelInput, ModelType } from "../../shared/api";
 import { defaultCustomHeadersText } from "../../shared/utils/modelDefaults";
 import { modelPresets, presetEndpoint, trimTrailingSlash, type ModelPreset } from "../../shared/utils/modelPresets";
@@ -5,7 +6,7 @@ import { Button } from "../../shared/ui/Button";
 import { Checkbox } from "../../shared/ui/Checkbox";
 import { FormField, SecretTextInput, TextInput } from "../../shared/ui/FormControls";
 import { JsonEditor } from "../../shared/ui/JsonEditor";
-import { Combobox, Select } from "../../shared/ui/Select";
+import { Combobox, Select, type ComboboxHandle } from "../../shared/ui/Select";
 import { Switch } from "../../shared/ui/Switch";
 import { claudeIcon, openAiIcon } from "../../shared/ui/icons";
 import { CursorPresetChips } from "./CursorPresetChips";
@@ -55,8 +56,9 @@ export function CursorModelEditor({ draft, modelOptions, discovering, onChange,
   modelOptions: string[];
   discovering: boolean;
   onChange: (draft: CursorModelDraft) => void;
-  onDiscover: () => void;
+  onDiscover: () => Promise<boolean>;
 }) {
+  const modelCombobox = useRef<ComboboxHandle>(null);
   const setModel = (patch: Partial<ModelInput>) => onChange({ ...draft, model: { ...draft.model, ...patch } });
   const setType = (type: ModelType) => {
     // 切换协议类型时，若当前地址命中某预设的另一协议端点，自动换到该预设对应协议的端点，
@@ -89,6 +91,9 @@ export function CursorModelEditor({ draft, modelOptions, discovering, onChange,
     .filter((preset) => trimTrailingSlash(presetEndpoint(preset, draft.model.type).baseUrl) === trimTrailingSlash(draft.model.base_url.trim()))
     .flatMap((preset) => preset.models.map((item) => item.model_id));
   const combinedOptions = [...new Set([...modelOptions, ...presetModelOptions])];
+  const discoverModels = async () => {
+    if (await onDiscover()) modelCombobox.current?.openAll();
+  };
   const applyPreset = (preset: ModelPreset) => {
     const endpoint = presetEndpoint(preset, draft.model.type);
     const first = preset.models[0];
@@ -151,7 +156,7 @@ export function CursorModelEditor({ draft, modelOptions, discovering, onChange,
       </div>
       <FormField label="API Key" hint={t("访问模型服务所需的密钥。")}> <SecretTextInput placeholder="sk-xxxxxx" autoComplete="off" value={draft.model.api_key} onChange={(event) => setModel({ api_key: event.target.value })} /></FormField>
 
-      <FormField label={t("模型名称")} hint={t("可以直接输入模型标识，也可以读取接口返回的模型列表。")}> <Combobox value={draft.model.model_id} options={combinedOptions} placeholder="gpt-5" append={<Button className={styles.discoverButton} disabled={discovering || !canDiscover} onClick={onDiscover}>{discovering ? t("获取中…") : t("获取模型")}</Button>} onChange={(model_id) => setModel({ model_id, display_name: draft.model.display_name || model_id })} /></FormField>
+      <FormField label={t("模型名称")} hint={t("可以直接输入模型标识，也可以读取接口返回的模型列表。")}><Combobox ref={modelCombobox} value={draft.model.model_id} options={combinedOptions} placeholder="gpt-5" append={<Button className={styles.discoverButton} disabled={discovering || !canDiscover} onClick={() => void discoverModels()}>{discovering ? t("获取中…") : t("获取模型")}</Button>} onChange={(model_id) => setModel({ model_id, display_name: draft.model.display_name || model_id })} /></FormField>
       <FormField label={t("显示名称")} hint={t("仅用于界面展示，不会改变发送给模型服务的模型名称。")}> <TextInput placeholder={t("例如：主力模型")} value={draft.model.display_name} onChange={(event) => setModel({ display_name: event.target.value })} /></FormField>
       <FormField className={styles.fullWidth} label={t("备注")} hint={t("显示在 Cursor 模型说明中。")}> <TextInput placeholder={t("请输入模型备注")} value={draft.model.tooltip_data} onChange={(event) => setModel({ tooltip_data: event.target.value })} /></FormField>
 
diff --git a/apps/desktop/src/features/models/CursorSettingsPage.tsx b/apps/desktop/src/features/models/CursorSettingsPage.tsx
index 74fdf52..245d028 100644
--- a/apps/desktop/src/features/models/CursorSettingsPage.tsx
+++ b/apps/desktop/src/features/models/CursorSettingsPage.tsx
@@ -88,8 +88,8 @@ export function CursorSettingsPage() {
       anthropicExtraParamsText: JSON.stringify(model.anthropic_extra_params, null, 2),
     });
   };
-  const discover = async () => {
-    if (!draft) return;
+  const discover = async (): Promise<boolean> => {
+    if (!draft) return false;
     setDiscovering(true);
     try {
       const custom_headers = parseHeaders(draft.customHeadersText);
@@ -101,8 +101,10 @@ export function CursorSettingsPage() {
         custom_headers,
       });
       setModelOptions([...new Set(result.models)]);
+      return true;
     } catch (cause) {
       message(errorText(cause));
+      return false;
     } finally {
       setDiscovering(false);
     }
@@ -338,7 +340,7 @@ export function CursorSettingsPage() {
     </ConfirmDialog>
     <Modal fullHeight open={draft !== null} title={editing ? t("编辑模型") : t("添加模型")} banner={draft && (editorTesting || editorTestState) ? <CursorModelTestResult state={editorTestState} testing={editorTesting} /> : undefined} busy={cursorBusy || savingAndTesting} onClose={() => { if (editing && editorTesting) void cancelModelTest(editing.model_hash); setDraft(null); setEditing(null); }} onSubmit={() => void save()} submitLabel={t("保存")} secondaryAction={<button type="button" className={controls.secondary} disabled={cursorBusy || savingAndTesting} onClick={() => void (editorTesting && editing ? cancelModelTest(editing.model_hash) : saveAndTest())}>{savingAndTesting ? t("处理中…") : editorTesting ? t("取消测试") : t("保存并测试")}</button>}>
       {draft && <>
-        <CursorModelEditor draft={draft} modelOptions={modelOptions} discovering={discovering} onChange={setDraft} onDiscover={() => void discover()} />
+        <CursorModelEditor draft={draft} modelOptions={modelOptions} discovering={discovering} onChange={setDraft} onDiscover={discover} />
       </>}
     </Modal>
     <ConfirmDialog open={caCommand !== null} title={t("安装本地 CA")} cancelLabel={t("关闭")} confirmLabel={t("打开终端")} onCancel={() => setCaCommand(null)} onConfirm={openCaTerminal}>
diff --git a/apps/desktop/src/shared/ui/Select.tsx b/apps/desktop/src/shared/ui/Select.tsx
index 623b817..2827ea9 100644
--- a/apps/desktop/src/shared/ui/Select.tsx
+++ b/apps/desktop/src/shared/ui/Select.tsx
@@ -1,5 +1,5 @@
 import { autoUpdate, computePosition, flip, offset, shift, size } from "@floating-ui/dom";
-import { useEffect, useId, useLayoutEffect, useMemo, useRef, useState, type ReactNode } from "react";
+import { forwardRef, useEffect, useId, useImperativeHandle, useLayoutEffect, useMemo, useRef, useState, type ReactNode } from "react";
 import { createPortal } from "react-dom";
 import { VirtualList } from "../virtual/VirtualList";
 import type { VirtualListApi } from "../virtual/virtualTypes";
@@ -57,19 +57,44 @@ export function Select({ value, options, disabled, ariaLabel, onChange }: { valu
   </>;
 }
 
-export function Combobox({ value, options = [], placeholder, disabled, append, onChange }: { value: string; options?: string[]; placeholder?: string; disabled?: boolean; append?: ReactNode; onChange: (value: string) => void }) {
+export type ComboboxHandle = {
+  openAll: () => void;
+};
+
+type ComboboxProps = {
+  value: string;
+  options?: string[];
+  placeholder?: string;
+  disabled?: boolean;
+  append?: ReactNode;
+  onChange: (value: string) => void;
+};
+
+export const Combobox = forwardRef<ComboboxHandle, ComboboxProps>(function Combobox({ value, options = [], placeholder, disabled, append, onChange }, ref) {
   const root = useRef<HTMLDivElement>(null);
   const input = useRef<HTMLInputElement>(null);
   const menu = useRef<HTMLDivElement>(null);
   const listApi = useRef<VirtualListApi | null>(null);
+  const closeTimer = useRef<number | null>(null);
   const menuId = useId();
   const [open, setOpen] = useState(false);
+  const [filtering, setFiltering] = useState(true);
   const [active, setActive] = useState(-1);
   const [position, setPosition] = useState({ left: 0, top: 0, width: 0, maxHeight: 280 });
   const filtered = useMemo(() => {
+    if (!filtering) return options;
     const query = value.trim().toLocaleLowerCase();
     return options.filter((option) => !query || option.toLocaleLowerCase().includes(query));
-  }, [options, value]);
+  }, [filtering, options, value]);
+
+  useImperativeHandle(ref, () => ({
+    openAll: () => {
+      if (closeTimer.current !== null) window.clearTimeout(closeTimer.current);
+      setFiltering(false);
+      setActive(0);
+      setOpen(true);
+    },
+  }), []);
 
   useLayoutEffect(() => {
     if (!open || !root.current || !menu.current) return;
@@ -79,6 +104,9 @@ export function Combobox({ value, options = [], placeholder, disabled, append, o
     }).then(({ x, y }) => setPosition((current) => ({ ...current, left: x, top: y }))));
   }, [open, filtered.length]);
 
+  useEffect(() => () => {
+    if (closeTimer.current !== null) window.clearTimeout(closeTimer.current);
+  }, []);
   useEffect(() => {
     if (!open) return;
     const outside = (event: PointerEvent) => { if (!root.current?.contains(event.target as Node) && !menu.current?.contains(event.target as Node)) setOpen(false); };
@@ -91,8 +119,11 @@ export function Combobox({ value, options = [], placeholder, disabled, append, o
 
   const openMenu = () => {
     if (disabled || options.length === 0) return;
+    setFiltering(true);
     setOpen(true);
-    const selected = filtered.indexOf(value);
+    const query = value.trim().toLocaleLowerCase();
+    const matchingOptions = options.filter((option) => !query || option.toLocaleLowerCase().includes(query));
+    const selected = matchingOptions.indexOf(value);
     setActive(selected >= 0 ? selected : 0);
   };
   const choose = (option: string) => { onChange(option); setOpen(false); input.current?.focus(); };
@@ -102,7 +133,7 @@ export function Combobox({ value, options = [], placeholder, disabled, append, o
     setActive((index) => (index < 0 ? 0 : (index + step + filtered.length) % filtered.length));
   };
   return <div className={styles.comboRow}><div ref={root} className={styles.combo}>
-    <input ref={input} value={value} placeholder={placeholder} disabled={disabled} role="combobox" aria-haspopup="listbox" aria-controls={open ? menuId : undefined} aria-expanded={open} aria-autocomplete="list" onFocus={() => { if (options.length) openMenu(); }} onBlur={() => window.setTimeout(() => setOpen(false), 100)} onChange={(event) => { onChange(event.target.value); setActive(0); if (options.length) setOpen(true); }} onKeyDown={(event) => {
+    <input ref={input} value={value} placeholder={placeholder} disabled={disabled} role="combobox" aria-haspopup="listbox" aria-controls={open ? menuId : undefined} aria-expanded={open} aria-autocomplete="list" onFocus={() => { if (options.length) openMenu(); }} onBlur={() => { closeTimer.current = window.setTimeout(() => setOpen(false), 100); }} onChange={(event) => { setFiltering(true); onChange(event.target.value); setActive(0); if (options.length) setOpen(true); }} onKeyDown={(event) => {
       if (event.key === "ArrowDown") { event.preventDefault(); move(1); }
       if (event.key === "ArrowUp") { event.preventDefault(); move(-1); }
       if (event.key === "Enter" && open && filtered[active]) { event.preventDefault(); choose(filtered[active]); }
@@ -115,5 +146,5 @@ export function Combobox({ value, options = [], placeholder, disabled, append, o
       </VirtualList>
     </div>, document.body)}
   </div>{append}</div>;
-}
+});