The synchronization accuracy of a multi motor speed synchronization system determines the safety of distributed drive electric vehicles (DDEV). In response to the shortcomings of existing control strategies, a midrange deviation coupling control (MDCC) strategy is proposed in this paper. Firstly, a mathematical model of multi permanent magnet synchronous motor (PMSM) is established, and based on deviation coupling control, MDCC is designed, the structure of DCC is simplified by using the midrange speed deviation of each motor, and the motor controller was designed using Terminal sliding mode control (TSMC) algorithm. Finally, an experimental platform was built to validate the proposed control strategy. The results showed that the proposed control strategy outperformed other control strategies in relevant performance indicators.