There are many technical problems in the pile foundation design of the high-pile wharf in the design documents about port engineering,so it is necessary to further improve the integrality and rationality of the pile foundation design.This paper summarizes the matters needing attention in the key technical processes in the pile foundation design,such as selection of bearing layer,calculation of bearing capacity,check of pile shaft strength and pile driving control standard and quality test,by means of interpretation and extension of the provisions of pile foundation specifications,offering the directive opinions for pile foundation designers to improve the design concept,upgrade the design quality and generate better and more reasonable pile foundation design results.