In order to improve the degree of compaction and decrease the post-construction settlement of the high embankments, dynamic compaction treatment method is usually used on them. After the analysis of the design principle of embankment dynamic compaction treatment, the workflow of automatic design technology based on dynamo is proposed, and the dynamo program taking the 3D embankment model as the executive object is compiled. These achievements were successfully applied to the Huanhu Road Project (Phase Ⅱ) in Chongqing Liangjiang Collaborative Innovation Zone. The result proves that the use of automatic design technology in embankment dynamic compaction treatment can improve the design quality and get a higher working efficiency as well.