Mature　civil　engineering　software　and　platforms　can　provide　a　dynamic　correlated　situation　of　the　road　design,　generate　a　quick　and　accurate　grading　design　in　terrain　model　making,　and,　most　importantly,　improve　the　design　efficiency　and　calculation　accuracy　and　reduce　the　workload　of　designers　in　the　construction　project.　However,　the　application　of　existing　platforms　in　complex　site　engineering　for　the　design　of　ski　tracks　has　not　been　well　developed.　The　design　process　of　ski　tracks　requires　consideration　of　elaborate　requirements　in　complex　environmental　conditions.　In　this　study,　we　aim　to　simplify　digital　elevation　model　(DEM)　data,　optimize　ski　track　contour　lines,　and　localize　the　design　expression　of　the　ski　track　designs　based　on　the　experience　of　the　construction　of　the　National　Alpine　Ski　Center　in　the　Yanqing　Competition　Zone　for　the　Beijing　2022　Winter　Olympic　Games.　This　study　examines　the　feasibility　of　the　optimal　digital　approach　combining　mathematics　and　computer　science　based　on　the　case　study　of　the　warm-up　and　training　ski　track　of　the　south　area　in　the　Yanqing　Competition　Zone.　This　study　will　contribute　to　the　optimal　design　of　skiing　tracks　in　construction　projects　and　help　to　improve　designers＇　workload　efficiency　for　the　design　and　construction　of　ski　tracks　in　the　future.