The invention relates to a respiratory quantitative training method and device, and the method comprises the steps: determining a linear corresponding value of tension and intraperitoneal balance pressure according to the tension in the circumferential direction of the waist when a human respiratory waist and abdomen muscle group is tightened; determining a corresponding value between the intraperitoneal equilibrium pressure and the pulmonary inspiration; measuring for multiple times to determine the maximum inspiratory capacity in the lung and the upper limit value of the intraperitoneal balance pressure intensity, taking the maximum inspiratory capacity and the upper limit value of the intraperitoneal balance pressure intensity as reference standards, and normalizing the actual inspiratory capacity and the intraperitoneal balance pressure intensity to obtain an actual inspiratory capacity relative value and an actual intraperitoneal balance pressure intensity relative value; under the actual air suction amount relative value, performing interval division on the change range of the actual intra-abdominal balance pressure intensity relative value; determining respiratory training standards corresponding to different respiratory training methods according to the measured actual intraperitoneal equilibrium pressure relative value, and performing human respiratory training according to the standards. The respiratory training method is simple, easy to understand and wide in application field.