diff --git a/docs/adr/0035-restore-keeps-original-name.md b/docs/adr/0035-restore-keeps-original-name.md
new file mode 100644
index 0000000..a16c689
--- /dev/null
+++ b/docs/adr/0035-restore-keeps-original-name.md
@@ -0,0 +1,20 @@
+# ADR 0035: Restore Keeps The Original Name; Conflict Is A Clear Error
+
+## Status
+
+Accepted. **Supersedes ADR-0033** (restore de-duplicates the node name on sibling
+conflict).
+
+## Context
+
+ADR-0033 made restore auto-rename to `原名(已恢复)` on sibling name conflict so
+restore never fails. In practice the suffix is unwanted noise - operators expect the
+original name back and prefer to resolve conflicts themselves.
+
+## Decision
+
+Restore clears `deletedAt` and keeps the node's **original name**. If an active
+sibling now occupies the same name (D14 partial unique index), the service throws a
+`409 name_conflict_on_restore` with a human-readable message ("同名节点已存在，请先
+重命名现有节点再恢复") - no silent renaming, no suffix. The restore audit records
+the original name only.
diff --git a/hub/filelib-web/src/lib/BinView.svelte b/hub/filelib-web/src/lib/BinView.svelte
index a74b71b..0db73f4 100644
--- a/hub/filelib-web/src/lib/BinView.svelte
+++ b/hub/filelib-web/src/lib/BinView.svelte
@@ -36,15 +36,11 @@
   async function restore(e: BinEntry): Promise<void> {
     busyId = e.id;
     try {
-      const r = await api<{ name: string; renamedFrom?: string }>(
+      const r = await api<{ name: string }>(
         `/database/api/bin/${encodeURIComponent(e.id)}/restore`,
         { method: "POST" },
       );
-      toastOk(
-        r.renamedFrom !== undefined && r.renamedFrom !== r.name
-          ? `已恢复为「${r.name}」(原名与现有节点冲突)`
-          : `已恢复「${r.name}」`,
-      );
+      toastOk(`已恢复「${r.name}」`);
       await load();
     } catch (err) {
       toastErr(err instanceof Error ? err.message : String(err));
diff --git a/hub/src/database/filelib/binService.ts b/hub/src/database/filelib/binService.ts
index 7aaadd2..15e0687 100644
--- a/hub/src/database/filelib/binService.ts
+++ b/hub/src/database/filelib/binService.ts
@@ -11,7 +11,7 @@
  */
 
 import type { PrismaClient } from "@prisma/client";
-import { FileLibError, nameKey, NODE_NAME_MAX_LENGTH } from "./model.js";
+import { FileLibError, nameKey } from "./model.js";
 import { FILE_LIB_AUDIT_ACTIONS, writeFileLibAudit } from "./audit.js";
 import type { GroupResolver } from "./groupResolver.js";
 import type { FileLibActor } from "./treeService.js";
@@ -113,7 +113,6 @@ async function requireBinEntry(
 
 export interface RestoreResult {
   readonly name: string;
-  readonly renamedFrom?: string | undefined;
 }
 
 /**
@@ -126,33 +125,21 @@ export async function restoreBinEntry(deps: BinDeps, actor: FileLibActor, nodeId
   return deps.prisma.$transaction(async (tx) => {
     const node = await requireBinEntry(tx as PrismaClient, deps, actor, groupIds, nodeId);
 
-    const siblings = await tx.fileLibNode.findMany({
+    const clash = await tx.fileLibNode.findFirst({
       where: {
         organizationId: deps.organizationId,
         parentId: node.parentId,
         deletedAt: null,
         id: { not: node.id },
+        nameLower: nameKey(node.name),
       },
-      select: { nameLower: true },
+      select: { id: true },
     });
-    const taken = new Set(siblings.map((s) => s.nameLower));
-
-    let name = node.name;
-    let renamedFrom: string | undefined;
-    if (taken.has(nameKey(name))) {
-      renamedFrom = node.name;
-      let n = 1;
-      do {
-        const suffix = n === 1 ? "(已恢复)" : `(已恢复 ${n})`;
-        name = node.name.slice(0, NODE_NAME_MAX_LENGTH - suffix.length) + suffix;
-        n += 1;
-      } while (taken.has(nameKey(name)));
+    if (clash !== null) {
+      throw new FileLibError(409, "name_conflict_on_restore", "name conflict on restore");
     }
 
-    await tx.fileLibNode.update({
-      where: { id: node.id },
-      data: { deletedAt: null, name, nameLower: nameKey(name) },
-    });
+    await tx.fileLibNode.update({ where: { id: node.id }, data: { deletedAt: null } });
     await writeFileLibAudit(tx, {
       action: node.kind === "PROJECT"
         ? FILE_LIB_AUDIT_ACTIONS.projectRestore
@@ -162,9 +149,9 @@ export async function restoreBinEntry(deps: BinDeps, actor: FileLibActor, nodeId
       objectType: node.kind === "PROJECT" ? "project" : "folder",
       objectId: node.id,
       objectPath: node.pathIds,
-      detail: { name, ...(renamedFrom !== undefined ? { renamedFrom } : {}) },
+      detail: { name: node.name },
     });
-    return { name, renamedFrom };
+    return { name: node.name };
   });
 }
 
diff --git a/hub/test/integration/filelib-nav.test.ts b/hub/test/integration/filelib-nav.test.ts
index f8de9fd..5272981 100644
--- a/hub/test/integration/filelib-nav.test.ts
+++ b/hub/test/integration/filelib-nav.test.ts
@@ -10,6 +10,7 @@ import {
   createNode,
   softDeleteNode,
   listChildren,
+  renameNode,
   type FileLibActor,
   type TreeServiceDeps,
 } from "../../src/database/filelib/treeService.js";
@@ -92,30 +93,27 @@ describe("binService · 恢复", () => {
     expect(audits).toHaveLength(1);
   });
 
-  it("ADR-0033:与活跃兄弟撞名时恢复为「(已恢复)」,不死锁;审计记 renamedFrom", async () => {
+  it("ADR-0035:撞名时恢复报 name_conflict_on_restore(不自动改名),清名后可恢复", async () => {
     const root = await createNode(treeDeps(), ADMIN, { parentId: null, kind: "FOLDER", name: "物理" });
     const child = await createNode(treeDeps(), ADMIN, { parentId: root.id, kind: "FOLDER", name: "必修一" });
     await softDeleteNode(treeDeps(), ADMIN, child.id);
-    // 删除后同名新建 → 活跃兄弟占了名字
+    // 删除后同名新建 -> 活跃兄弟占了名字
     await createNode(treeDeps(), ADMIN, { parentId: root.id, kind: "FOLDER", name: "必修一" });
 
+    await expect(restoreBinEntry(binDeps(), ADMIN, child.id)).rejects.toMatchObject({
+      statusCode: 409,
+      code: "name_conflict_on_restore",
+    });
+
+    // 改名现有节点后恢复 -> 成功,保留原名
+    const active = (await listChildren(treeDeps(), ADMIN, root.id)).find((c) => c.name === "必修一")!;
+    await renameNode(treeDeps(), ADMIN, active.id, "必修一(新)");
     const result = await restoreBinEntry(binDeps(), ADMIN, child.id);
-    expect(result.renamedFrom).toBe("必修一");
-    expect(result.name).toBe("必修一(已恢复)");
+    expect(result.name).toBe("必修一");
+    expect(result.renamedFrom).toBeUndefined();
 
     const visible = await listChildren(treeDeps(), ADMIN, root.id);
-    expect(visible.map((c) => c.name).sort()).toEqual(["必修一", "必修一(已恢复)"]);
-
-    // 再删再恢复:名字已是去重后的「(已恢复)」,不再冲突 → 保持,不二次改名
-    await softDeleteNode(treeDeps(), ADMIN, child.id);
-    const second = await restoreBinEntry(binDeps(), ADMIN, child.id);
-    expect(second.name).toBe("必修一(已恢复)");
-    expect(second.renamedFrom).toBeUndefined();
-
-    const audits = await prisma.auditEntry.findMany({
-      where: { action: FILE_LIB_AUDIT_ACTIONS.folderRestore },
-    });
-    expect(audits).toHaveLength(2);
+    expect(visible.map((c) => c.name).sort()).toEqual(["必修一", "必修一(新)"]);
   });
 });