The invention relates to the technical field of power equipment, especially to a high-temperature early warning device for power equipment. The high-temperature early warning device for the power equipment comprises a base and a power equipment box, the power equipment box is provided with a temperature monitor, an alarm and a display, the upper end face of the base is connected with a support pillar, the lower end face of the power equipment box is connected with a first threaded sleeve, the first threaded sleeve penetrates the top wall of the support pillar and is slidingly connected with the support pillar, the support pillar is internally provided with a hollow structure, the support pillar is internally provided with a height regulation mechanism, the height regulation mechanism comprises a first threaded inner rod, the first threaded inner rod is vertically arranged in the support pillar, the bottom end of the first threaded inner rod is connected with a bearing base, the bearingbase is installed at the bottom wall of the support pillar, and the surface of the first threaded inner rod is in threaded connection with the inner wall of the first threaded sleeve. The high-temperature early warning device for the power equipment can regulate the height of the power equipment box, and is simple in regulation process and convenient in use.