The invention relates to an average drilling cutting temperature measuring device, which is characterized in that: a straight tube is arranged in a thick-wall vertical cylinder on a base; a spring and a chock block are arranged in the straight tube; the upper part of the thick-wall vertical cylinder is provided with a limit plate; the top of the thick-wall vertical cylinder is provided with an upper cover; a mandril is inserted into the straight tube through a through hole of the upper cover; the upper end of the mandril is provided with a plastic sheet fixed through a spring check ring; the middle of the plastic sheet is provided with a stepped copper electrode; and a drill bit capable of rotationally moving downwards is arranged above the stepped copper electrode, and is provided with a rotation copper electrode. The device has the advantages that the structure is simple, the device is easy and convenient to operate and the yield is high, overcomes the defects in the prior art, and is suitable for promotion and application.