The interface coordination and construction collision during the design and construction of conventional mechatronics and system mechatronics of Shenzhen Metro Line No. 9 by using the building information modeling(BIM) technology are simulated and analyzed. The conclusions drawn are as follows: 1) The success of BIM application can be guaranteed by a standardized development design work procedure. 2) The collision of pipe lines can be reduced and the structure damage can be minimized by using BIM technology. 3) The synchronization between design and construction and the uniformity of every design profession can be achieved by using BIM technology.