In this paper, we study the multifunctional intelligent car with Bluetooth remote control, and control the intelligent model using wireless Bluetooth technology. The system is composed of C51 micro-controller as the main control chip, L298N motor driver IC, hc-06 Bluetooth wireless module, 1602 liquid crystal display module, ultrasonic module circuit. Based on mobile phone platform, a complete multifunctional smart car system is achieved with Bluetooth technology, achieving the functions of Bluetooth wireless remote control and automatic wall avoidance.