A Y-shaped anal tube with an air bag comprises a catheter, wherein the front end of the catheter is a blind end, an opening is arranged at a certain distance from the blind end, an inflatable tube isarranged outside the catheter, an inflatable tube is arranged along the inner wall of the catheter, and the inflatable tube protrudes out of the catheter and is connected with an indication bag and aone-way valve. A Y-shaped connector is arranged at that end of the catheter, one end of the Y-shaped connector is connected with an enema barrel, and the other end is connected with a drainage device.The invention provides a Y-shaped anal tube with an air bag, which can avoid repeated intubation to increase the pain of a patient by arranging an air bag outside the catheter and a Y-shaped joint atthe end of the catheter. A patient does not need to go to the toilet in a hurry, and can also prevent the enema from spilling out.