Protection device for maintenance and test of electrical appliance substrate for household electrical appliance

The utility model discloses a protection device for maintenance and test of a substrate of a household appliance, which relates to the technical field of maintenance and test of substrates of household appliances and comprises a base, an anti-static hollow tray and a transparent upper cover plate. The base comprises a bottom plate, a left side plate, a right side plate and a rear side plate; the anti-static hollowed-out tray is horizontally arranged in the base and keeps a distance from the base plate, and the electric appliance substrate is placed on the anti-static hollowed-out tray. The left side plate and the right side plate are each provided with a communication side window communicated with the outside, and peripheral equipment, a sensor and an electric appliance substrate are connected through the communication side windows. And the transparent upper cover plate is movably arranged above the base, so that the test state of the electric appliance substrate can be checked in real time. The protection de