The development route for BIM is to gradually realize BIM through improvement of existing professional software with P-BIM thinking. Piled foundation P-BIM software is based on P-BIM design. This paper explores its design process, data interface and main functions. Using this software, contractors can get instant quantities of piles and communicate, coordinate and solve problems immediately with the designers and Party A. Besides, the government departments can supervise the construction quality and safety in an efficient way.