diff --git a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.test.ts b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.test.ts
index c22199f3b..4cdad8ba0 100644
--- a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.test.ts
+++ b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.test.ts
@@ -1,6 +1,9 @@
 import { describe, expect, it } from 'vitest';
 
-import type { Model3dTextureQuality } from '../../../../packages/shared/src/contracts/model3d';
+import type {
+  Model3dModelVersion,
+  Model3dTextureQuality,
+} from '../../../../packages/shared/src/contracts/model3d';
 import type {
   Model3dAddOnPriceKey,
   Model3dPricingConfig,
@@ -257,6 +260,10 @@ describe('模型版本', () => {
     expect(resolveModel3dModelVersion(undefined)).toBe(
       DEFAULT_MODEL3D_MODEL_VERSION,
     );
+    // 老快照里存着已退役版本时，报价与提交也必须一起回落到默认版本，而不是查表抛异常。
+    expect(
+      resolveModel3dModelVersion('v1.0-20190101' as Model3dModelVersion),
+    ).toBe(DEFAULT_MODEL3D_MODEL_VERSION);
     expect(normalizeModel3dModelVersion('  P2-20260801 ')).toBe('P2-20260801');
     // 老快照里的退役版本不发给服务端。
     expect(normalizeModel3dModelVersion('v1.0-20190101')).toBe(
diff --git a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
index e276ef885..0c274eaec 100644
--- a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
+++ b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
@@ -202,11 +202,16 @@ export function resolveModel3dGenerationParams({
   return { ok: true, params };
 }
 
-/** 提交与报价共用的模型版本：缺字段（老快照）时回落到默认版本。 */
+/**
+ * 提交与报价共用的模型版本：缺字段（老快照）或存的是已退役版本时回落到默认版本。
+ *
+ * 收敛必须发生在读表之前：`resolveModel3dModelFamily` 直接按版本查表，契约里没有的版本会抛异常，
+ * 面板、报价与提交体因此都得走同一个入口。
+ */
 export function resolveModel3dModelVersion(
   model: Model3dModelVersion | null | undefined,
 ): Model3dModelVersion {
-  return model ?? DEFAULT_MODEL3D_MODEL_VERSION;
+  return normalizeModel3dModelVersion(model);
 }
 
 /**