The two-dimensional（2D）pier design process of fixed mast cranes is exposed to problems such as insufficient cooperation between specialties，inaccurate expression of drawings，and low standardization of design.Therefore，utilizing a project at a heavy cargo wharf，this paper applies the digital 3D collaborative design technology to the construction design stage of the pier foundation of mast cranes.Through the deployment of collaborative work environment and parameter-driven design，this paper expounds on six application points including multi-disciplinary collaborative design，optimal layout of pile foundations，structural calculations，parametric layout of embedded parts，statistics of engineering quantity，and standard drawings.The practical applications show that the 3D collaborative design of the parallel working mode improves the collaboration between specialties and shortens the design cycle.In addition，the parametric design makes scheme optimization and selection more convenient and efficient，and the accumulation of family libraries promotes the standardization level of design.