Multifunctional swivel chair tray and using method thereof

A multifunctional swivel chair tray, comprising a main body, wherein an ascending and descending rod connecting hole is formed in the main body, a base plate and a warping plate are connected to a first rotating shaft, the main body is connected with the warping plate through a second rotating shaft, an ascending and descending block penetrates through the second rotating shaft, the ascending and descending block is positioned above the ascending and descending rod connecting hole, the ascending and descending block is connected with an ascending and descending driving mechanism, a first adjusting rod penetrates through a first side of the main body, the first adjusting rod is connected with a multi-spring grouping adjusting mechanism, a second adjusting rod is disposed on a second side of the main body, the second adjusting rod is connected with a gear adjusting mechanism, the warping plate is connected with the base plate through a third rotating shaft, a slide plate is slidably connected onto the base plate, and a slide plate locking mechanism is located between the base plate and the slide plate.