Disclosed is an automatic urine collection system, comprising a host machine (1) and a collecting bucket (2), wherein the host machine (1) is provided with a urine guiding passage and the urine guiding passage is connected to the collecting bucket (2), the host machine (1) is provided with a power device (22) which can drive the urine to flow along the urine guiding passage into the collecting bucket (2), the top of the collecting bucket (2) has an opening and the bottom of the bucket is provided with a drain opening (21), the host machine (1) seals off the opening on the top, the drain opening (21) is provided with a plugging piece (24), the plugging piece (24) can automatically switch between a sealed state and a discharging state when triggered, and in the sealed state, the plugging piece (24) plugs the drain opening (21)； and in the discharging state, the drain opening (21) is opened. The host machine (1) and the collecting bucket (2) being arranged to be combined from top to bottom as an integrated and complete machine can simplify structure, reduce volume and improve reliability. By arranging the plugging piece (24) that can automatically switch state when triggered, steps to clean up urine are simplified and the user experience is improved.L'invention concerne un système automatique de prélèvement d'urine, comprenant une machine hôte (1) et un réservoir de prélèvement (2), la machine hôte (1) étant pourvue d'un passage de guidage de l'urine et le passage de guidage de l'urine étant relié au réservoir de prélèvement (2), la machine hôte (1) étant pourvue d'un dispositif d'alimentation (22) qui peut entraîner l'écoulement de l'urine le long du passage de guidage de l'urine et jusqu'au réservoir de prélèvement (2), la partie supérieure du réservoir de prélèvement (2) comportant une ouverture et le fond du réservoir étant pourvu d'une ouverture d'évacuation (21), la machine hôte (1) obturant l'ouverture sur le dessus, l'ouverture d'évacuation (21) étant pourvue d
