diff --git a/src/main/capabilities/office-aliases.test.ts b/src/main/capabilities/office-aliases.test.ts
index 249abda..f89e59a 100644
--- a/src/main/capabilities/office-aliases.test.ts
+++ b/src/main/capabilities/office-aliases.test.ts
@@ -1,6 +1,7 @@
 import { readFile, mkdtemp, rm } from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
+import ExcelJS from "exceljs";
 import { fileURLToPath } from "node:url";
 import { afterEach, describe, expect, it } from "vitest";
 import type { Catalog, CatalogComponent, FlowNode } from "../../shared/types";
@@ -84,6 +85,17 @@ describe("common Excel aliases", () => {
     expect(savedAs.path).toBe(path.resolve(directory, "rel-target.xlsx"));
   });
 
+  it("combines the Excel_Cs_SaveAs directory path with the name field", async () => {
+    const directory = await mkdtemp(path.join(os.tmpdir(), "rpa-excel-saveas-cs-")); dirs.push(directory);
+    const created = await run("Excel_NewExcel", { filePath: directory, name: "cs-origin.xlsx" }) as { path: string };
+    const targetDir = path.join(directory, "nested");
+    const savedAs = await run("Excel_Cs_SaveAs", { workbook: created, path: targetDir, name: "cs-target.xlsx" }) as { path: string };
+    expect(savedAs.path).toBe(path.resolve(targetDir, "cs-target.xlsx"));
+    const reopened = new ExcelJS.Workbook();
+    await reopened.xlsx.readFile(savedAs.path);
+    expect(reopened.worksheets.length).toBeGreaterThan(0);
+  });
+
   it("clears a range through the Excel_ClearRange cellPos key", async () => {
     const directory = await mkdtemp(path.join(os.tmpdir(), "rpa-excel-clear-")); dirs.push(directory);
     const created = await run("Excel_NewExcel", { filePath: directory, name: "clear.xlsx" }) as { path: string };
diff --git a/src/main/capabilities/office.ts b/src/main/capabilities/office.ts
index 134b06d..9786cb2 100644
--- a/src/main/capabilities/office.ts
+++ b/src/main/capabilities/office.ts
@@ -178,9 +178,13 @@ const saveExcel: CapabilityHandler = async (_ctx, node, args) => {
 
 const saveAsExcel: CapabilityHandler = async (_ctx, node, args) => {
   const { handle, workbook } = await resolveWorkbook(args, node.id, node.componentId);
-  const raw = required(value(args, ["path", "file", "savePath", "filename", "saveFilePath"]), "另存为路径", node.id, node.componentId);
+  // CS 版（Excel_Cs_SaveAs）用 path=目录 + name=文件名；Legacy（Excel_SaveAs）用 filename=完整路径
+  const rawName = text(args, ["name"]);
+  const raw = rawName
+    ? path.resolve(text(args, ["path", "file", "savePath"], ""), rawName)
+    : required(value(args, ["path", "file", "savePath", "filename", "saveFilePath"]), "另存为路径", node.id, node.componentId);
   // Legacy Excel_SaveAs 用 isAbsolutePath 标记 filename 是否为绝对路径，相对路径基于原文件目录
-  const absolute = bool(value(args, ["isAbsolutePath"]), true);
+  const absolute = rawName ? true : bool(value(args, ["isAbsolutePath"]), true);
   const previousPath = handle.path;
   handle.path = absolute ? path.resolve(raw) : path.resolve(path.dirname(previousPath), raw);
   await fs.mkdir(path.dirname(handle.path), { recursive: true });