The invention relates to the technical field of medical auxiliary equipment, in particular to a dynamic urinary bladder pressure volume monitoring device. The dynamic urinary bladder pressure volume monitoring device comprises a urethral catheter, a monitor, a computer control terminal and a magnetic valve, wherein the monitor comprises a urinary bladder pressure monitor, a sphincter pressure monitor and a urinary bladder pressure volume monitoring probe, the urinary bladder pressure monitor and the urinary bladder pressure volume monitoring probe are integrated and fixed to one end of the urethral catheter, and the sphincter pressure monitor is fixedly distributed on the outer side face of eh front portion of the urethral catheter. The dynamic urinary bladder pressure volume monitoring device has the advantages that the volume and pressure change of the urinary bladder and the pressure change at the sphincter can be dynamically monitored in time in a physiological status, and a dynamic pressure-volume change curve in the relevant physiological status is obtained by integrating signals through a computer.