The invention discloses a solar absorption type air conditioner, comprising an evacuated tube solar collector, a water storage tank, an auxiliary thermal source, an A absorber, a B absorber, an A evaporator, a B evaporator, an A condenser, a B condenser, a cooling medium water tank, a cooling tower, a water pump, a hot water pump, a floor heater, an air conditioning fan, a coiled tube, a cold water pump and an electromagnetic valve bank controlled by a microcomputer. The invention adopts macropore silica gel-water doped with calcium chloride as refrigeration absorption working substance so as to increase absorption quantity and speed, thus considerably improving the heat efficiency. The device also has the functions of refrigerating in summer, heating in winter and supplying hot water during other seasons, thus notably enhancing the utilization rate and economical property of solar energy. The auxiliary thermal source is connected with the evacuated tube solar collector in parallel through a pipeline, and therefore the device can operate round the clock with practicability considerably improved.