A lifting device is used for lifting or lowering a part of a plate body of a multi-plate device, which comprises a push rod set, a telescopic rod, a motor and a lifting mechanism. The motor can drive the telescopic rod to extend or retract, and one end of the telescopic rod is connected to the push rod group. The push rod group can interlock the plate body and can lift the plate body smoothly through the guiding of the lifting mechanism during the driving by the telescopic rod.一種升降裝置用於對一多板體設備的部分板體進行操控升起或下降,其包括推桿組、伸縮桿、馬達及抬升機構。其中馬達可驅使伸縮桿伸出或是縮回,伸縮桿一端連接推桿組,推桿組可連動板體並在受到伸縮桿帶動的過程中透過抬升機構的引導而能順利將板體抬升。