The invention provides a paediatric negative pressure 
gastric lavage device for a pediatrician. The paediatric negative pressure 
gastric lavage device comprises a main frame, universal wheels, a connector A, a connector B, a flexible 
pipe, a filtering flask A, a filtering flask B, a 
back door cover device, a storage groove device, a pushing 
handle, a liquid inlet port, a control panel, a switch, aconnecting 
pipe warning label and a power socket, wherein the universal wheels are arranged on four corners of the lower portion of the main frame; the connector A and the connector B are horizontally arranged at both sides of the connecting 
pipe warning label; the filtering flask A and the filtering flask B are respectively arranged on the lower portions of the connector A and connector B; the connector A is connected with the filtering flask A through the flexible pipe; the 
back door cover device is buckled at the lower end of the back portion of the main frame; and the storage groove device is arranged on the upper portion of the 
back door cover device. Through the arrangement of a cover body, 
handle hole, heat emission hole and rotary knob, the heat dissipation is ensured better, theback door cover device is disassembled conveniently through the cooperation of the 
handle hole and rotary hole, thereby taking and replacing internal components of the 
gastric lavage device.