diff --git a/docs/FreeCAD 3D自动布线设计方案.md b/docs/FreeCAD 3D自动布线设计方案.md
index f723d4a..0ca4427 100644
--- a/docs/FreeCAD 3D自动布线设计方案.md	
+++ b/docs/FreeCAD 3D自动布线设计方案.md	
@@ -91,7 +91,7 @@ FreeCAD 的 `3D 布线连接` 面板提供“线槽桥接容差 mm”数值框
 
 同一面板还提供“端子接入最大距离 mm”和“端子出线长度 mm”。前者用于控制端子距离最近路由网络超过多少毫米时不再生成 `TerminalAccess`，避免设备还没摆放好时生成超长悬空接入线；后者用于控制端子沿 LCS 出线方向先走出的短线长度，避免导线从设备壳体内部或端子原点直接折返。
 
-面板还提供“并行线间距 mm”，用于控制多根导线共用同一路径时的可视 lane 偏移距离。它只影响 3D 显示上导线之间的错位间距，不代表真实线槽截面内的排布位置。
+面板还提供“并行线间距 mm”和“并行线方向”，用于控制多根导线共用同一路径时的可视 lane 偏移。方向默认 `auto`，也可以手动指定 `x`、`y`、`z`。这些设置只影响 3D 显示上导线之间的错位方式，不代表真实线槽截面内的排布位置。
 
 ### 2.1 路由优先级
 
@@ -462,7 +462,7 @@ tests/python/freecad_exchange_auto_routing_test.py
 34. 批量布线报告会显示最大 lane 编号和 lane 间距，方便确认多根线共路时是否发生了可视错位。
 35. `QetRouteTrackJson` 的 carrier payload 会记录 `capacity`，方便后续分析线槽容量偏好和共路绕行。
 36. 批量布线报告会在最大并行线数超过路径最小容量时显示容量提示，但当前仍不做真实填充率计算。
-37. `3D 布线连接` 面板提供“并行线间距 mm”设置，用于调整多线共路时的可视 lane 偏移距离。
+37. `3D 布线连接` 面板提供“并行线间距 mm”和“并行线方向”设置，用于调整多线共路时的可视 lane 偏移。
 
 已完成 FreeCAD smoke：
 
diff --git a/src/Mod/FreeCADExchange/AutoRoutingPanel.py b/src/Mod/FreeCADExchange/AutoRoutingPanel.py
index 858e5f2..97e444f 100644
--- a/src/Mod/FreeCADExchange/AutoRoutingPanel.py
+++ b/src/Mod/FreeCADExchange/AutoRoutingPanel.py
@@ -106,6 +106,12 @@ class AutoRoutingController:
             lane_spacing = AutoRouting.DEFAULT_OPTIONS["lane_spacing"]
         self.options["lane_spacing"] = max(lane_spacing, 0.0)
 
+    def set_lane_axis(self, value):
+        lane_axis = str(value or "").strip().lower()
+        if lane_axis not in {"auto", "x", "y", "z"}:
+            lane_axis = AutoRouting.DEFAULT_OPTIONS["lane_axis"]
+        self.options["lane_axis"] = lane_axis
+
     def summary(self):
         doc = _active_document()
         terminal_count = len(AutoRouting.index_terminals(doc))
@@ -288,6 +294,19 @@ class AutoRoutingTaskPanel:
             )
         )
         options_layout.addWidget(self.lane_spacing_spin)
+        options_layout.addWidget(QtWidgets.QLabel("并行线方向"))
+        self.lane_axis_combo = QtWidgets.QComboBox()
+        self.lane_axis_combo.addItems(["auto", "x", "y", "z"])
+        lane_axis = str(
+            self.controller.routing_options().get(
+                "lane_axis",
+                AutoRouting.DEFAULT_OPTIONS["lane_axis"],
+            )
+            or "auto"
+        ).lower()
+        axis_index = self.lane_axis_combo.findText(lane_axis)
+        self.lane_axis_combo.setCurrentIndex(axis_index if axis_index >= 0 else 0)
+        options_layout.addWidget(self.lane_axis_combo)
 
         self.generate_layout_button = QtWidgets.QPushButton("准备布线布局空间")
         self.generate_layout_button.setToolTip(
@@ -359,6 +378,7 @@ class AutoRoutingTaskPanel:
         self.controller.set_terminal_access_max_distance(self.terminal_access_max_distance_spin.value())
         self.controller.set_terminal_exit_length(self.terminal_exit_length_spin.value())
         self.controller.set_lane_spacing(self.lane_spacing_spin.value())
+        self.controller.set_lane_axis(self.lane_axis_combo.currentText())
 
     def generate_routing_paths(self):
         try:
diff --git a/tests/python/freecad_exchange_auto_routing_test.py b/tests/python/freecad_exchange_auto_routing_test.py
index 91c27a2..923a858 100644
--- a/tests/python/freecad_exchange_auto_routing_test.py
+++ b/tests/python/freecad_exchange_auto_routing_test.py
@@ -1771,6 +1771,49 @@ class AutoRoutingTest(unittest.TestCase):
         self.assertEqual(14.0, report["routes"][1]["lane"]["spacing_mm"])
         self.assertEqual(14.0, report["routes"][1]["lane"]["offset_mm"])
 
+    def test_auto_routing_controller_exposes_lane_axis(self):
+        _install_fake_freecad()
+        terminal_objects, _wiring_objects, routing_network, _auto_routing = _reload_modules()
+        auto_routing_panel = importlib.import_module("AutoRoutingPanel")
+        app = sys.modules["FreeCAD"]
+        doc = FakeDocument()
+        app.ActiveDocument = doc
+        terminal_objects.ensure_root_group(doc, "project-1")
+        _terminal(doc, terminal_objects, "TerminalStartA", "terminal-start-a", app.Vector(0, 0, 0))
+        _terminal(doc, terminal_objects, "TerminalEndA", "terminal-end-a", app.Vector(0, 100, 0))
+        _terminal(doc, terminal_objects, "TerminalStartB", "terminal-start-b", app.Vector(0, 0, 0))
+        _terminal(doc, terminal_objects, "TerminalEndB", "terminal-end-b", app.Vector(0, 100, 0))
+        routing_network.create_route_carrier(
+            doc,
+            [app.Vector(0, 0, 20), app.Vector(0, 100, 20)],
+            project_uuid="project-1",
+            kind="WireDuct",
+        )
+        app._qet_exchange_payload = {
+            "project_uuid": "project-1",
+            "wires": [
+                {
+                    "wire_id": "wire-a",
+                    "start_terminal_uuid": "terminal-start-a",
+                    "end_terminal_uuid": "terminal-end-a",
+                },
+                {
+                    "wire_id": "wire-b",
+                    "start_terminal_uuid": "terminal-start-b",
+                    "end_terminal_uuid": "terminal-end-b",
+                },
+            ],
+        }
+
+        controller = auto_routing_panel.AutoRoutingController()
+        controller.set_lane_spacing(8.0)
+        controller.set_lane_axis("z")
+        report = controller.route_eplan_connections()
+
+        self.assertEqual("z", controller.routing_options()["lane_axis"])
+        self.assertEqual("z", report["routes"][1]["lane"]["axis"])
+        self.assertEqual(8.0, report["routes"][1]["lane"]["offset_mm"])
+
     def test_eplan_connection_route_rejects_far_network_entry_to_avoid_huge_render_bbox(self):
         _install_fake_freecad()
         terminal_objects, _wiring_objects, routing_network, auto_routing = _reload_modules()