The invention discloses a multifunctional indwelling urethral catheterization device which comprises a catheter, a drainage tube and a drainage bag, wherein a branch tube is sidewards arranged on the drainage tube by a three-way tube; a urination monitoring system is additionally mounted at the tail end of the branch tube and comprises a PCB (printed circuit board), a microcontroller welded on the PCB, a parameter setting keyboard, a display screen, a pressure sensor, a flow sensor, an electronic drain valve, a realtime clock module, an early warning device and a remote monitoring platform; the parameter setting keyboard, the display screen, the pressure sensor, the flow sensor, the electronic drain valve, the realtime clock module and the early warning device are connected with the microcontroller; the pressure sensor is connected with the tail end of the branch tube in an inserted and sealed manner; and the electronic drain valve and the flow sensor are sequentially and additionally mounted on the drainage tube and located in the downstream position of the three-way tube. The device integrates functions of automatic pressure urination, urination data (urination frequency, urination time and urine volume) acquisition and transmission, parameter adjustment, crisis early warning and remote monitoring, is high in practicability, operates precisely, facilitates popularization, saves manpower consumption of a hospital, and can provide important data information for medical research.