The compression heat regeneration adsorption dryer utilizes the two major properties of high heat and high unsaturation of the high-temperature compressed air discharged from the air compressor to effectively heat and regenerate the adsorbent using this original compressed air heat. This not only saves the electric heating power consumption required by the micro heat suction dryer, but also eliminates the gas consumption in this stage. Only a small amount of product gas is taken during the cold blowing stage to cold blow and regenerate the already heated adsorbent, making it an energy-saving oriented regeneration dryer.