According to the driving control and reliability of electric wheeled vehicle, a power and steering control system is established. The power and steering system of an electric wheeled vehicle is designed, and its reliability is analyzed and verified by experiments. The power part is composed of STM32 as the main controller, which can drive and control four brushless DC motor through the drive circuit chip IR2136 based on the full bridge; steering part can be controlled by driving two brushless DC motor through the driving circuit of half bridge driver chip based on IR2103, double loop control system of the speed loop and current loop is adopted and the fuzzy adaptive proportion integration differentiation (PID) algorithm is used. The experimental results show that the system can well follow the load and reduce the starting current, so that the car can run reliably. The drive control system has the advantages of good load capacity, small starting current, safe and stable, and accurate steering, which can meet the requirements of facility agriculture.