The invention, which relates to the technical field of test equipment, discloses a door opener for durability test of a refrigerator door switch. The door opener comprises a fixed connection device for fixing a tested refrigerator, a door opening connection device connected to a refrigerator door, and a power device that is fixed at the fixed connection device and is used for driving the door opening connection device. Therefore, matching to refrigerators with different types is realized quickly; a matching problem of the opening/closing track of the refrigerator door is solved; the door opener is installed conveniently and quickly; the upper door and the lower door of the refrigerator can be opened or closed automatically and repeatedly; the equipment safety stability coefficient is highand the fault rate is low; the refrigerator is not easy to damage; the automation degree is high; and the structure is simple and the cost is low.