This type gastricl avage machine changes the original push-button to touch button and the electromagnetic valves changed to patent induction valves. The changes have overcome the damage, malfunction of electromagnetic valves and other shortcomings of the push-button. The operation of machine is simple and with both manual and automatic functions. The pressure and self-control time of the machine are adjustable. This gastriclavage machine can be applied to the hospital for emergency treatment for poison, food poisoning patients before surgery.