A drive system and control method of dross box and lehr used in float glass production process isproposed. By setting redundant controllers and alternate transmission motors, a fault-tolerant drivesystem was constructed. Based on this hardware foundation, a control method based on redundant faulttolerantstrategy was developed. In this method, a three-layer control structure consisting of drive controllayer, redundancy switching layer and speed judgment layer was established, and a redundant faulttolerantcontrol process was designed, ensuring a good match between the transmission speed of dross boxand lehr, realizing automatic and non-disturbance switch of primary and standby transmission by judgingthe fault information. The drive system and control method proposed in this paper can improve therobustness of the drive system of dross box and lehr, ensure the optical properties of the high-end precisionfloat glass, and improve the product quality effectively.