Abstract: In order to improve the difficulty of tractor steering and ensure the safety of vehicle driving, this paper proposes a tractor power steering control strategy based on 3 C2410 microprocessor, which can realize the accurate control of tractor steering wheel. The test results show that the steering wheel assist current of the system can quickly follow the change of the steering wheel and provide assistance to the steering wheel, which shows that the power assist motor of the system has good follow performance, and verifies the feasibility and reliability of the system.