A multifunctional sports training vault comprises a base and a saddle positioned atop; the base is provided with a support post, a height adjusting device is disposed in the support post and comprises a screw, a driving bevel gear and a driven bevel gear, the inside of the support post is provided with a first channel with an upward opening, the closed end of the first channel is provided with a second channel, the lower end of the screw is positioned in the second channel, the upper end of the screw is provided with a screw cap, the lower portion of the screw is provided with a driven bevel gear, the driving bevel gear meshes with the outside of the driven bevel gear, and the driving bevel gear is connected to a motor through a spindle; the saddle is disposed at the upper end of the screw cap. The multifunctional sports training vault has the advantages that the height of the saddle is adjusted through the height adjusting device to adapt to different trainees, foam may be arranged to provide good protection for wrist joints of sportsmen, and the saddle provides improved bounce for sportsmen so that the sportsmen can jump higher.