The invention provides a two-stage first class absorption heat pump taking triple effect as a first stage, which belongs to the technical fields of waste heat utilization and heat pump/refrigeration. The two-stage first class absorption heat pump comprises a heat pump with three heat supply ends consisting of a first absorber, a first generator, a second generator, a third generator, a second absorber, a fourth generator, a condenser, an evaporator, a first solution pump, a second solution pump or/and a third solution pump, a first throttle valve, a second throttle valve, a third throttle valve, a first solution heat exchanger, a second solution heat exchanger, a third solution heat exchanger, a fourth solution heat exchanger or/and a fifth solution heat exchanger; a heat pump with four power supply ends is formed by adding a second condenser and a fourth throttle valve; and the first generator provides driving steam for the second generator, the second generator driving steam for the third generator, the third generator provides refrigerant steam for the second absorber or/and the second condenser, the first absorber or/and the second condenser provides/provide a first-stage heat load, the fourth generator provides refrigerant steam for the condenser, and the second absorber and the condenser provide a second-stage heat load.