The invention discloses a lifting stage control device and a control method. The lifting stage control device comprises a main controller, a PLC (programmable logic controller), a plurality of alternating current servo motors, lifting tables, current sensors, at least one position sensor and rotating speed sensors, wherein the number of the lifting table is the same as that of the alternating current servo motors, the current sensors are respectively arranged on each alternating current servo motor, the at least one position sensor is arranged on each lifting table, the rotating speed sensors are respectively arranged on each alternating current servo motor, the PLC is electrically connected with each alternating current servo motor, each alternating current servo motor is electrically connected with the corresponding lifting table, the rotating speed sensors, the current sensors and the position sensor are respectively and electrically connected with the main controller, and a display screen is arranged on the main controller. The lifting stage control device and the control method have the characteristics that the stage lifting conversion efficiency is ensured, the safety requirement of actors in the performance process is also ensured, the modification cost is low, and the multi-operational modes of stages in the unloaded and loaded states can be realized.