The invention relates to a drainage tube unit for evacuating bodily fluids usinga suction pump. Said unit has a drainage tube (10) for evacuating the bodily fluidsand at least one service tube (11), each tube having a patient-side end and a pump-sideend, the patient-side end of the drainage tube (10) and of the service tube (11)being located in a common patient-side connection part (3) and the pump-sideend of the drainage tube (10) and of the service tube (11) being located in a commonpump-side connection part (2). The ends of the drainage tube (10) run separatelyfrom the ends of the service tube (11), the patient-side ends opening into a drainagechannel (37) and a service channel (35) of the patient-side connection part (3)and the pump-side ends opening into a drainage channel (24) and a service channel(25) of the pump-side connection part (2). The drainage tube unit according tothe invention is cost-effective to produce and simple and safe to use.