diff --git a/server/render/consumer/assemble_render_data.go b/server/render/consumer/assemble_render_data.go
index be5208a2..20291803 100644
--- a/server/render/consumer/assemble_render_data.go
+++ b/server/render/consumer/assemble_render_data.go
@@ -175,7 +175,7 @@ func (m *MqConsumerRenderAssemble) Run(ctx context.Context, data []byte) error {
 	if index, ok := mapImageData[templateInfo.Id]; ok {
 		baseImage = constants.H5_URL + "/storage" + rspInfo.Data[index].Imgurl
 	}
-	tempData := []map[string]interface{}{}
+	tempData := make([]map[string]interface{}, 0, 3)
 	if element.Base != nil && *element.Base != "" {
 		tempData = append(tempData, map[string]interface{}{
 			"name":      "model",