The invention relates to a lifting and locking device. The vertical lifting and locking device is composed of a vertical lifting mechanism and a locking mechanism, and is characterized in that the vertical lifting mechanism includes a fixed rack (2), a left lifting gear (1), a left motor, and a left bearing platform frame (17 ), the right lifting gear (22), the right motor, the right bearing platform frame (23), the left lifting gear (1) meshes with the teeth on the left end of the fixed rack (2), the right lifting gear (22) and the fixed gear The teeth on the right end of the bar (2) are meshed, the left lifting gear (1) is connected with the output shaft of the left motor, the right lifting gear (22) is connected with the output shaft of the right motor, and the left motor is fixed on the left bearing platform frame (17), the right motor is fixed on the right bearing platform frame (23), and the left bearing platform frame (17), the right bearing platform frame (23) are connected with the bearing platform respectively; locking mechanism. The invention has the characteristics of large carrying weight, high working efficiency, safety and reliability in static state.