The invention relates to the technical field of transformers, in particular to a temperature-adjustable type transformer which comprises a connecting mechanism, a first cooling mechanism, a water tank, a heat absorption mechanism, a fixing mechanism, a sealing mechanism, a resistance coil, an installing mechanism, a second cooling mechanism, a box body and a compression block. The resistance coilis wound on the side wall of the installing mechanism. The heat absorption mechanism is installed in the installing mechanism. When the resistance coil emits heat in the use process, refrigerant fluidin the heat absorption mechanism absorbs away the heat of the installing mechanism, the temperature of the installing mechanism becomes normal, and the installing mechanism keeps the magnetism; the compression block is slidingly connected with the bottom end of the installing mechanism, the gas in the sealed installing mechanism expands when the temperature of the installing mechanism rises, thecompression block presses down the refrigerant fluid in the water tank, more refrigerant fluid enters the heat absorption mechanism, and the heat absorption effect of the heat absorption mechanism isincreased; a second cooling mechanism is arranged in the heat absorption mechanism, and the refrigerant fluid is cooled by the second cooling mechanism and discharged into the water tank so as to be recycled.