Gastrostomy jejunum tube

The gastrostomy jejunum tube comprises a tube body, a water bag and a fixed pressing plate, the water bag and the fixed pressing plate are arranged on the tube body in a sleeved mode, a liquid food channel and a waterway channel are arranged in the tube body, an inlet of the waterway channel is located at the in-vitro end of the tube body, and an outlet of the waterway channel is located on the side wall of the tube body and is in butt joint with a water inlet of the water bag. An inlet of the liquid food channel is located at the in-vitro end of the tube body, an outlet of the liquid food channel is located at the in-vivo end, extending into the jejunum, of the tube body, and the in-vivo end of the tube body is curled to be in a pigtail shape. The tube body of the jejunum tube is extended, so that the inner end of the jejunum tube can directly extend into the jejunum, liquid food and medicine can be directly conveyed to the jejunum, nutrition in the jejunum is guaranteed, meanwhile, the inner end of the jeju