Abstract: Based on the hardware platform of Cortex-M3 processor, the intelligent control system of vehicle is designed in the paper. It achieved intelligent driving of vehicle by the Bluetooth of mobile phones. The hardware system consists of Bluetooth module, motor driver module, Cortex-M3 chip and mobile phone. The software system includes the control program on the STM32 and the interface program of the mobile phone. The test shows that vehicle has been intelligently controlled by Bluetooth of mobile phones.