diff --git a/__test__/Room/RoomParse.test.ts b/__test__/Room/RoomParse.test.ts
index 7f14f11ec..0b758e94a 100644
--- a/__test__/Room/RoomParse.test.ts
+++ b/__test__/Room/RoomParse.test.ts
@@ -245,3 +245,18 @@ test('删除共面(同向)墙线', () =>
     for (let c of walls[0].LidCurves)
         expect(c.Length).toMatchNumberSnapshot();
 });
+
+test('z不为0时分析错误', () =>
+{
+    let d =
+        { "file": [2, "RoomWallLine", 1, 3, 8, 2, 124, false, 1, 7, 0, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, -13710.71648240625, 1], 0, 0, true, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, -13710.71648240625, 1], 0, 120, 0, 2700, 7598.467587478741, -303.5140527181652, 0, 5724.050903378557, -303.5140527181652, 0, "RoomWallLine", 1, 3, 8, 2, 126, false, 1, 7, 0, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, -13710.71648240625, 1], 0, 0, true, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, -13710.71648240625, 1], 0, 120, 0, 2700, 5776.923628395063, -1966.0055000000004, 0, 5776.923628395063, -303.5140527181652, 0], "basePt": { "x": 5716.923628395063, "y": -1966.0055000000004, "z": -13710.71648240625 }, "ucs": [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1] };
+    let walls = LoadEntityFromFileData<RoomWallBase>(d);
+    new RoomWallParse(true, undefined, false).Parse(walls);
+
+    for (let c of walls[0].LeftCurves)
+        expect(c.Length).toMatchNumberSnapshot();
+    for (let c of walls[0].RightCurves)
+        expect(c.Length).toMatchNumberSnapshot();
+    for (let c of walls[0].LidCurves)
+        expect(c.Length).toMatchNumberSnapshot();
+});
diff --git a/__test__/Room/__snapshots__/RoomParse.test.ts.snap b/__test__/Room/__snapshots__/RoomParse.test.ts.snap
index 3e1acfeac..3772dd7ea 100644
--- a/__test__/Room/__snapshots__/RoomParse.test.ts.snap
+++ b/__test__/Room/__snapshots__/RoomParse.test.ts.snap
@@ -1,5 +1,13 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`z不为0时分析错误 1`] = `"1761.54396"`;
+
+exports[`z不为0时分析错误 2`] = `"1874.41668"`;
+
+exports[`z不为0时分析错误 3`] = `"120.00000"`;
+
+exports[`z不为0时分析错误 4`] = `"60.00000"`;
+
 exports[`不同厚度的墙合理的延伸 1`] = `
 Array [
   -1741.576246932827,