diff --git a/src/utils/videoEraseNodes.ts b/src/utils/videoEraseNodes.ts
index 9656ecf6..86470f67 100644
--- a/src/utils/videoEraseNodes.ts
+++ b/src/utils/videoEraseNodes.ts
@@ -147,7 +147,9 @@ function createVideoEraseNode(
     selectedModel: config.selectedModel,
     batchSize: VIDEO_ERASE_BATCH_SIZE,
     referenceSubjectList: [],
-    parameters: {},
+    // aiModelName 按网关约定应为模型 code(与 aiModelCode 一致),放进 parameters
+    // 让 buildPopiTaskBody 优先采用,而非回退到中文 displayName。
+    parameters: { aiModelName: config.selectedModel.aiModelCode ?? config.selectedModel.modelId },
     extraTaskParams: config.extraTaskParams,
     subType: config.subType,
     customTitle: config.customTitle,