The invention relates to the field of pneumatic punching machine equipment, in particular to a fastening type pneumatic punching machine capable of automatically adjusting height. The technical problem to be solved by the invention is to provide the fastening type pneumatic punching machine which can automatically adjusting the height to adapt to different products, meanwhile, can carry out punching stably, and is improved in service life of a foot pedal switch. The fastening type pneumatic punching machine capable of automatically adjusting the height comprises a workbench, a moving groove, control switches, fastening assemblies, a pedal control assembly, a height adjusting assembly, a mounting frame assembly, buffer equipment, a punching connecting frame, a timer, a switch set and the like, wherein a moving groove for guiding a punching part to move is formed in the top surface of the workbench; the supporting base is fixedly connected to the rear wall of the workbench; the two control switches are fixedly connected to two side walls of the workbench in sequence; and the fastening assemblies are fixedly connected to the front wall of the workbench. According to the fastening typepneumatic punching machine, the effects that the height of the punching machine can be conveniently and automatically adjusted to adapt to the different products, meanwhile, punching can be carried out stably, and the service life of the foot pedal switch can be prolonged are achieved.