Damping-adjustable breath training whistle

A damping-adjustable breath training whistle belongs to the field of exercise equipment. The whistle is characterized in that the whistle is a tube connected vertically in general; the tube comprises an upper body, a lower body and a whistle body from top to bottom; the upper body, the lower body and the whistle body are installed together through insertion; two end surfaces of the upper body and the lower body in contact are provided with corresponding through holes; a rotary boss is arranged on the outer edge of the through hole of the upper body, and a rotary limiting slot is arranged on the outer edge of the through hole of the lower body; the rotary boss is corresponding to the rotary limiting slot; a pointer projection is arranged on the outer wall of the upper body, and scale mark projections are arranged on the outer wall of the lower body; the position of the pointer projection is corresponding to the positions of the scale mark projections; and a sounding whistle is installed inside the whistle body. The whole structure of the whistle is delicate and practical, thereby facilitating breathing and whistle blowing through force adjustment and enhancing the cardiorespiratory capability effectively. Each ventilation link is adjustable, so that the usage demands of various groups of people are satisfied to the maximum.