Various types of pile foundations are often used in high-piled wharfs,and the arrangement of pile positions is complex,which leads to some limitations in traditional design.Based on Dynamo visual programming tool,this paper studies the BIM design optimization of pile foundation of high-piled wharf.Combining the wharf pile foundation model with three-dimensional geological surface,the intersection points of strong weathered rock surface and medium weathered rock surface with pile foundation are obtained by Dynamo calculation.According to the rock-socketed depth of pile foundation design,the design pile length of each pile is calculated accurately and quickly,which significantly improves the accuracy and efficiency of pile foundation design and the accuracy of engineering quantity statistics,and can provide support for pile foundation construction under complex geological conditions.