diff --git a/apps/server/src/modules/file-manager/trash.ts b/apps/server/src/modules/file-manager/trash.ts
index 2806eb17..e330e0fb 100644
--- a/apps/server/src/modules/file-manager/trash.ts
+++ b/apps/server/src/modules/file-manager/trash.ts
@@ -584,7 +584,10 @@ export async function restoreTrash(
   return { restored, failed, recordId };
 }
 
-/** 清除:先删行(复核仍存在)再删文件;ids 缺省 = 只清过期项 */
+/**
+ * 清除:先删文件再删行(删文件失败时行留着,下次再清,不留没有登记的孤儿文件);ids 缺省 = 只清过期项,
+ * 并顺带清掉各库根 `.umt-trash/replaced-*` 里过期、没有回收站登记的旧文件(替换旧文件登记回收站失败时留下的)。
+ */
 export async function purgeTrash(
   d: FmDeps,
   principal: Principal | undefined,
@@ -598,18 +601,51 @@ export async function purgeTrash(
   for (const row of rows) {
     try {
       if (!trashPathSafe(d, row)) throw new FilesError("path_escape", "回收站路径异常，拒绝清除");
-      const gone = await d.ctx.db.deleteFrom("trash_item").where("id", "=", row.id).returning("id").executeTakeFirst();
-      if (!gone) continue;
       await rm(row.trash_path, { recursive: true, force: true });
       // 顺带清掉空的 <uuid>/<yyyymmdd> 目录
       const uuidDir = row.trash_path.slice(0, row.trash_path.length - row.original_path.length - 1);
       await rm(uuidDir, { recursive: true, force: true }).catch(() => undefined);
-      purged.push(row.id);
+      const gone = await d.ctx.db.deleteFrom("trash_item").where("id", "=", row.id).returning("id").executeTakeFirst();
+      if (gone) purged.push(row.id);
     } catch (e) {
       failed.push({ id: row.id, code: e instanceof FilesError ? e.reason : "io_error", message: errMessage(e) });
     }
   }
-  if (purged.length || failed.length)
-    await audit(d, principal, "trash_purge", { purged, failed, expiredOnly: !body.ids });
+  const orphans = body.ids ? [] : await purgeReplacedOrphans(d);
+  if (purged.length || failed.length || orphans.length)
+    await audit(d, principal, "trash_purge", { purged, failed, orphans, expiredOnly: !body.ids });
   return { purged, failed };
 }
+
+/** 各启用库根 `.umt-trash/replaced-*`:修改时间早于保留期、里面没有任何回收站登记的,整个删掉;返回删掉的目录 */
+async function purgeReplacedOrphans(d: FmDeps): Promise<string[]> {
+  const out: string[] = [];
+  const cutoff = d.ao.ports.now().getTime() - d.options.trashRetentionDays * 86_400_000;
+  const roots = await d.ctx.db
+    .selectFrom("library_root")
+    .select(["local_path"])
+    .where("enabled", "=", true)
+    .where("management_mode", "=", "managed")
+    .execute();
+  for (const r of roots) {
+    const rootReal = await realpath(r.local_path).catch(() => null);
+    if (!rootReal) continue;
+    const bin = join(rootReal, TRASH_DIR);
+    for (const name of await readdir(bin).catch(() => [] as string[])) {
+      if (!name.startsWith("replaced-")) continue;
+      const dir = join(bin, name);
+      const st = await lstat(dir).catch(() => null);
+      if (!st?.isDirectory() || st.mtimeMs > cutoff) continue;
+      const held = await d.ctx.db
+        .selectFrom("trash_item")
+        .select("id")
+        .where("trash_path", "like", likePrefix(dir))
+        .executeTakeFirst();
+      if (held) continue;
+      await rm(dir, { recursive: true, force: true })
+        .then(() => out.push(dir))
+        .catch(() => undefined);
+    }
+  }
+  return out;
+}
diff --git a/apps/server/test/file-manager/trash.test.ts b/apps/server/test/file-manager/trash.test.ts
index 8711c8cd..86595d7f 100644
--- a/apps/server/test/file-manager/trash.test.ts
+++ b/apps/server/test/file-manager/trash.test.ts
@@ -1,4 +1,4 @@
-import { access, mkdir, mkdtemp, readFile, rm, symlink, writeFile } from "node:fs/promises";
+import { access, mkdir, mkdtemp, readFile, rm, symlink, utimes, writeFile } from "node:fs/promises";
 import { dirname, join } from "node:path";
 import { findCrossDeviceBase } from "@umt/testkit";
 import { afterAll, beforeAll, describe, expect, it } from "vitest";
@@ -171,6 +171,21 @@ describe.skipIf(skip)("files 删除与回收站", () => {
     expect(left.map((x) => x.id)).not.toContain(oldId);
   });
 
+  it("purge 过期项时,过期且没有登记的 .umt-trash/replaced-* 一并清掉", async () => {
+    const oldBin = join(h.lib, ".umt-trash", "replaced-2020-01-01T00-00-00-000Z-aaaaaa");
+    const newBin = join(h.lib, ".umt-trash", "replaced-2099-01-01T00-00-00-000Z-bbbbbb");
+    await mkdir(oldBin, { recursive: true });
+    await mkdir(newBin, { recursive: true });
+    await writeFile(join(oldBin, "old.mkv"), "o");
+    await writeFile(join(newBin, "new.mkv"), "n");
+    const past = new Date(Date.now() - 30 * 86_400_000);
+    await utimes(oldBin, past, past);
+    const r = await h.api("POST", "/files/trash/purge", { idempotencyKey: key() }, SESSION);
+    expect(r.status).toBe(200);
+    expect(await exists(oldBin)).toBe(false);
+    expect(await exists(join(newBin, "new.mkv"))).toBe(true);
+  });
+
   it("永久删除默认关闭;API Key 删除需一次性审批", async () => {
     await writeFile(join(h.lib, "perm.txt"), "p");
     const p = await del({ items: [{ root: h.libRoot, path: "perm.txt" }], mode: "permanent", dryRun: false });