The invention provides a punch bag 
system for simulating fight actual-combat training and belongs to the field of VR. The punch bag 
system comprises a punch bag, a supporting column, a base and a VR head-mounted 
display device; the base comprises a 
data transmission device, a memorizer, wheels, motors, a processor, a controller, a battery and a 
piston motor; the supporting column comprises a 
piston; the punch bag comprises a positioning device. The positioning device is arranged on the upper portion of the punch bag. The 
piston is arranged at the upper end in the supporting column. The supporting column is fixed to the base. The base is provided with the wheels which are connected with the motors respectively. The memorizer, the battery, the controller, the processor, the 
data transmission device and the piston motor are arranged in the base respectively. According to the punch bag 
system, the actual-combat training and the punch bag training are combined; after wearing the VR head-mounted 
display device, a boxer can see a simulated boxer, and the training in actual-combat conditions is simulated. The punch bag moves up and down, the evasive actions of the boxer are simulated. When the boxer attacks, the fall points of 
attack are about to fall on the punch bag, the strength, the speed and the distance 
perception of the boxer can be trained.