In order to decrease the impact of reservoir or river water on the soaking embankment and to improve its slope stability, special reinforcement is usually taken place in soaking embankment during the design stage. The traditional design is limited in low accuracy and low efficiencies in design. BIM-based parametric workflow is being proposed and filling embankment model-based Dynamo program is being developed according to the conventional design principle of soaking embankment. By using the Huanhu Road Project (Phase Ⅱ) in Chongqing Liangjiang Collaborative Innovation Zone as case scenario, the proposed technical route and design method are being validated. The parametric design method of soaking embankment can significantly improve the design quality and working efficiency.