Electric pressure cooker is an upgraded product of traditional pressure cooker and rice cooker. It combines the advantages of pressure cooker and rice cooker, and adopts new technologies and structures such as elastic pressure control, dynamic sealing, external rotating cover, electric switch with adjustable displacement, fully sealed cooking, continuous pressure adjustment, etc., which completely solves the safety problem of pressure cooker and relieves the potential safety hazard that ordinary pressure cookers have plagued consumers for many years. Its thermal efficiency is over 80%, saving time and electricity (more than 30% than ordinary rice cookers). The electric pressure cooker is indeed a practical cooking appliance. It has incomparable advantages over other cookers, can meet all kinds of cooking needs, and can realize all kinds of cooking methods quickly, safely and automatically. Its characteristics of energy saving and nutrition are the direction pursued by modern people.