The invention relates to the technical field of medical devices, in particular to a clinical pulmonary rehabilitation exercise device in respiratory medicine, which includes a substrate, a backboard, an elastic air bag, a resistance blowing device, an inflatable cylinder, a hand-supported telescopic rod, a filter head, a mask, a puller Stretching spring, the middle part of the front outer wall of the base plate is fixedly connected with an inflatable cylinder, and the upper outer wall of the middle part of the inflatable cylinder is fixedly connected with a resistance blowing device, and the resistance blowing device includes a resistance air cylinder, an exhaust pipe, a thrust Piston, support rod, resistance piston. The structure design of the invention is reasonable. When inhaling, the arms can be stretched out to expand the chest. When exhaling, the inflatable cylinder can inflate the resistance air cylinder, so that the resistance piston and thrust piston can move up in the resistance air cylinder to exert resistance to exhalation, and at the same time press down The column will press down on the back panel, so that the elastic airbag can press down and massage the chest, so that the air can be exhaled. It is easy to use, can increase the strength of the respiratory muscles, increase the breathing range, and improve the effect of lung rehabilitation exercises.