The utility model belongs to the technical field of household appliances. The utility model relates to a micropressure device. Electric cooker cover, a first cavity is formed in the electric cooker cover. A first exhaust hole and a groove are formed in the inner wall of the top of the first chamber; a sliding column is mounted in the groove in a sliding manner; the bottom end of the sliding columnextends into the first chamber; a threaded groove is formed in the top end of the sliding column; a screw rod is installed in the threaded groove in a threaded mode, a first through hole is formed inthe inner wall of the top of the groove, the top end of the screw rod extends into the first through hole, the screw rod is rotatably installed in the first through hole, a second cavity is formed inthe sliding column, a second through hole is formed in the inner wall of the bottom of the second cavity, and a first sliding rod is slidably installed in the second through hole. The electric cookeris simple in structure and convenient to operate, the micro-pressure of the electric cooker can be rapidly adjusted through simple rotating action, people can cook rice with different tastes conveniently, the actual use requirements of people are met, and great convenience is brought to people.