Pressure-cooker with safety cover for open and close

The utility model relates to a pressure cooker with a safety opening and closing cover, which is mainly composed of a side handle, a cooker cover, a safety exhaust valve, a cooker body, a pressure regulating valve, an upper handle component and a lower handle, wherein a cover opening and closing device is arranged in the upper handle component; a floating valve is arranged on the cooker cover and is positioned in front of a support board on the cover opening and closing device; the front end of the support board is a flat and straight surface which is vertical to a valve core of the floating valve. The cooker cover of the utility model can not be opened under the condition that the utility model has pressure. The cooker cover can be opened only when the pressure in the utility model disappears. Furthermore, when the cooker cover and the cooker body are not closed in place, high pressure gas can not be generated in the utility model. Therefore, the safety of users is absolutely ensured.