The invention discloses an experimental system integrating sealing, constant temperature, visualization and quick detachment and mounting, and belongs to the technical field of flash boiling. The experimental system comprises four parts, namely a glass cabin sealing device, a heating device, a liquid adding and temperature measuring device and an air suction device. External sealing of a glass cabin is achieved by an upper stainless steel clamping plate and a lower stainless steel clamping plate, so that the pressure maintaining function in vacuum or at high pressure can be achieved; the heating device is a red copper heat source and is fixed by a thermocouple, a hollow lead cylinder and a limiting bolt fix the thermocouple, and fixing and sealing of the red copper heat source and the whole glass cabin are achieved under the coaction of a silicone gasket and the hollow cylinder; the stainless steel clamping plates are fixed by duckbill buckles, and compared with the conventional bolt fixing, duckbill buckle fixing has the advantage of the quick detachment and mounting; a vacuum gauge and upstream and downstream shut-off valves are mounted on an air suction pipeline and can be applied to a flash boiling experiment according to the operating sequence thereof. In allusion to the defects of the existing sealed experimental device, the problem that in the flash boiling experiment, an experimental device integrating the sealing, the constant temperature, the visualization and the quick detachment and mounting cannot be met can be solved.