diff --git a/src/features/settings/pages/Deployment.module.css b/src/features/settings/pages/Deployment.module.css
index 43cdb3fea..c154f84f0 100644
--- a/src/features/settings/pages/Deployment.module.css
+++ b/src/features/settings/pages/Deployment.module.css
@@ -123,8 +123,15 @@
 .mappingTable tbody tr.selectedRow {
   background: var(--bg-tree-selected);
 }
+.cellField {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
 .cellInput {
   width: 100%;
+  min-width: 0;
+  flex: 1;
 }
 
 /* Remote folder chooser. */
diff --git a/src/features/settings/pages/deployment.tsx b/src/features/settings/pages/deployment.tsx
index 0e5f6907a..c8084834e 100644
--- a/src/features/settings/pages/deployment.tsx
+++ b/src/features/settings/pages/deployment.tsx
@@ -7,6 +7,7 @@ import { useEffect, useId, useState, type KeyboardEvent } from "react";
 import clsx from "clsx";
 import { call, commands, IpcError, type FsConnection, type RemoteEntry } from "@/platform/ipc";
 import { useTx, tx, txTemplate } from "@/platform/i18n";
+import { useProject } from "@/platform/project";
 import { deploymentConnection, type DeploymentServerValid } from "@/platform/remoteSettings";
 import { Badge, Button, Checkbox, Dialog, Icon, IconButton, Input, Select, Spinner, T, Tabs } from "@/ui";
 import { GlobListEditor, Row } from "../components/Form";
@@ -15,6 +16,7 @@ import { useSetting } from "../components/context";
 import {
   addMapping,
   fixDefaultServer,
+  folderWithin,
   formatExcludes,
   newServer,
   parseExcludes,
@@ -22,6 +24,7 @@ import {
   removeMapping,
   updateMapping,
 } from "./deploymentModel";
+import { choosePath } from "../languages/api";
 import { BUILD_GROUP } from "./execution";
 import type { PageSpec } from "./spec";
 import { sshTestRemedy } from "./sshConnection";
@@ -373,6 +376,8 @@ function ConnectionTab({
   );
 }
 
+const isAbsolute = (p: string) => p.startsWith("/") || /^[A-Za-z]:[\\/]/.test(p);
+
 const MAPPING_COLUMNS = [
   { key: "local", title: "Local path", placeholder: "Project root" },
   { key: "deployment", title: "Deployment path", placeholder: "Root path" },
@@ -388,7 +393,22 @@ function MappingsTab({
 }) {
   const tx = useTx();
   const [selected, setSelected] = useState<number | null>(null);
+  const [browsing, setBrowsing] = useState<number | null>(null);
+  const projectRoot = useProject((s) => s.project?.root ?? null);
   const mappings = server.mappings;
+  const remoteRoot = server.rootPath.trim().replace(/\/+$/, "");
+  // Deployment paths are relative to the root path, so the remote chooser needs an absolute one.
+  const canBrowseRemote = isAbsolute(remoteRoot) && (server.kind !== "sftp" || !!server.sshConfig);
+  const set = (i: number, patch: Partial<(typeof mappings)[number]>) =>
+    update({ mappings: updateMapping(mappings, i, patch) });
+  const chooseLocal = async (i: number) => {
+    if (!projectRoot) return;
+    const current = mappings[i]?.local.trim() ?? "";
+    const start = isAbsolute(current) ? current : current ? `${projectRoot}/${current}` : projectRoot;
+    const picked = await choosePath({ directory: true, title: "Choose Folder", defaultPath: start });
+    const rel = picked === null ? null : folderWithin(projectRoot, picked);
+    if (rel !== null) set(i, { local: rel });
+  };
   return (
     <div className={styles.panel}>
       <div className={workflow.tableBox}>
@@ -440,15 +460,35 @@ function MappingsTab({
               >
                 {MAPPING_COLUMNS.map((c) => (
                   <td key={c.key}>
-                    <Input
-                      mono
-                      variant="bare"
-                      className={styles.cellInput}
-                      value={m[c.key]}
-                      placeholder={tx(c.placeholder)}
-                      aria-label={`${tx(c.title)} ${i + 1}`}
-                      onChange={(e) => update({ mappings: updateMapping(mappings, i, { [c.key]: e.target.value }) })}
-                    />
+                    <span className={styles.cellField}>
+                      <Input
+                        mono
+                        variant="bare"
+                        className={styles.cellInput}
+                        value={m[c.key]}
+                        placeholder={tx(c.placeholder)}
+                        aria-label={`${tx(c.title)} ${i + 1}`}
+                        onChange={(e) => set(i, { [c.key]: e.target.value })}
+                      />
+                      {c.key === "local" && (
+                        <IconButton
+                          icon="folder-open"
+                          size="small"
+                          title="Browse…"
+                          disabled={!projectRoot}
+                          onClick={() => void chooseLocal(i)}
+                        />
+                      )}
+                      {c.key === "deployment" && (
+                        <IconButton
+                          icon="folder-open"
+                          size="small"
+                          title={canBrowseRemote ? "Browse…" : "Set an absolute root path on the Connection tab first"}
+                          disabled={!canBrowseRemote}
+                          onClick={() => setBrowsing(i)}
+                        />
+                      )}
+                    </span>
                   </td>
                 ))}
               </tr>
@@ -463,6 +503,18 @@ function MappingsTab({
           }
         </T>
       </div>
+      {browsing !== null && (
+        <RemoteFolderDialog
+          connection={deploymentConnection(server)}
+          initial={[remoteRoot, mappings[browsing]?.deployment.trim().replace(/^\/+/, "")].filter(Boolean).join("/")}
+          onClose={() => setBrowsing(null)}
+          onChoose={(path) => {
+            const rel = folderWithin(remoteRoot, path);
+            if (rel !== null) set(browsing, { deployment: rel });
+            setBrowsing(null);
+          }}
+        />
+      )}
     </div>
   );
 }
diff --git a/src/features/settings/pages/deploymentModel.test.ts b/src/features/settings/pages/deploymentModel.test.ts
index de0525904..9895d52c6 100644
--- a/src/features/settings/pages/deploymentModel.test.ts
+++ b/src/features/settings/pages/deploymentModel.test.ts
@@ -3,6 +3,7 @@ import { DEFAULT_DEPLOYMENT_SERVER } from "@/platform/remoteSettings";
 import {
   addMapping,
   fixDefaultServer,
+  folderWithin,
   formatExcludes,
   newServer,
   nextServerName,
@@ -83,3 +84,14 @@ describe("server list", () => {
     expect(remoteParent("/var")).toBe("/");
   });
 });
+
+describe("chosen mapping folders", () => {
+  it("are relative to the project or the server's root path", () => {
+    expect(folderWithin("/work/shop", "/work/shop/web/public")).toBe("web/public");
+    expect(folderWithin("/var/www/", "/var/www/site")).toBe("site");
+    expect(folderWithin("/var/www", "/var/www/")).toBe("");
+    expect(folderWithin("/var/www", "/var/wwwroot")).toBeNull();
+    expect(folderWithin("/var/www", "/srv")).toBeNull();
+    expect(folderWithin("", "/srv")).toBeNull();
+  });
+});
diff --git a/src/features/settings/pages/deploymentModel.ts b/src/features/settings/pages/deploymentModel.ts
index c5359f589..f50d9e83d 100644
--- a/src/features/settings/pages/deploymentModel.ts
+++ b/src/features/settings/pages/deploymentModel.ts
@@ -79,3 +79,12 @@ export function remoteParent(path: string): string {
   const i = trimmed.lastIndexOf("/");
   return i <= 0 ? "/" : trimmed.slice(0, i);
 }
+
+/** `path` relative to the folder `root` ("" for `root` itself), for a chosen mapping folder; null outside it. */
+export function folderWithin(root: string, path: string): string | null {
+  const r = root.replace(/\/+$/, "");
+  const p = path.replace(/\/+$/, "");
+  if (!r) return null;
+  if (p === r) return "";
+  return p.startsWith(`${r}/`) ? p.slice(r.length + 1) : null;
+}
diff --git a/src/platform/locales/text/zh.json b/src/platform/locales/text/zh.json
index 4d6b52798..80ea6fffd 100644
--- a/src/platform/locales/text/zh.json
+++ b/src/platform/locales/text/zh.json
@@ -5705,5 +5705,6 @@
   "Session cost": "会话花费",
   "What the session has cost so far, as the agent reports it (API pricing, also shown on subscriptions)": "智能体报告的本会话目前花费（按 API 价格计算，订阅账户也会显示）",
   "Build and run using": "构建和运行使用",
-  "Gradle runs a main class as a JavaExec task on its source set's runtime classpath (Gradle's resource processing included). OpenIDEA launches it on the Java language server's classpath.": "Gradle 以 JavaExec 任务在源集的运行时类路径上运行主类（包括 Gradle 的资源处理）。OpenIDEA 在 Java 语言服务器的类路径上启动它。"
+  "Gradle runs a main class as a JavaExec task on its source set's runtime classpath (Gradle's resource processing included). OpenIDEA launches it on the Java language server's classpath.": "Gradle 以 JavaExec 任务在源集的运行时类路径上运行主类（包括 Gradle 的资源处理）。OpenIDEA 在 Java 语言服务器的类路径上启动它。",
+  "Set an absolute root path on the Connection tab first": "请先在“连接”页设置绝对根路径"
 }