The invention relates to a novel transformer protection case which comprises a case body, a base, a noise reduction plate, an exhaust tube, a one-way exhaust valve, an air pump interface, a solar roofand a bird scarer. The noise reduction plate is arranged inside the case body and clings to the inner wall of the case body, another noise reduction plate is further arranged inside the case body andat a position close to a case opening, the exhaust tube is arranged in the middle of one side of the case body, part of the exhaust tube extends into the case body, the other part of the exhaust tubeextends out of the case body, the one-way exhaust valve is arranged at the contact position of the exhaust tube and the outer surface of the case body, an orifice, extending out of the one-way exhaust valve, of the exhaust tube is provided with the air pump interface, the solar roof is arranged at the top of the case body and covers the case opening, and the bird scarer is arranged at the centerof the solar roof. The novel transformer protection case solves the technical problems of the prior art, so that a transformer is safer in assembly. The novel transformer protection case is simple instructure and obvious in effect and can be popularized, noise can be reduced, the risk of fire breakout is reduced, solar energy is used for generating power to repel birds, energy is saved, and environments are protected.