An air conditioning apparatus equipped with a refrigerant circuit configured as a result of plural indoor units (4a, 4b) being connected to an outdoor unit, the air conditioning apparatus comprising: a capacity controlling part that controls an air conditioning capacity of the outdoor unit in such a way that an evaporation temperature or a condensation temperature of refrigerant in the refrigerant circuit becomes a target evaporation temperature (Tes) or a target condensation temperature (Tcs); characterized by a target refrigerant temperature mode setting part configured to set a target refrigerant temperature mode to either of a target refrigerant temperature changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) and a target refrigerant temperature fixing mode that fixes the target evaporation temperature (Tes) or the target condensation temperature (Tcs), wherein the target refrigerant temperature changing mode has a fast changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that room temperatures of air conditioned spaces targeted by the indoor units (4a, 4b) reach, in a short amount of time, set temperatures that are target values of the room temperatures and a slow changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that the room temperatures reach the set temperatures in a longer amount of time than in the fast changing mode, and the fast changing mode and the slow changing mode are set by the target refrigerant temperature mode setting part. a capacity controlling part that controls an air conditioning capacity of the outdoor unit in such a way that an evaporation temperature or a condensation temperature of refrigerant in the refrigerant circuit becomes a target evaporation temperature (Tes) or a target condensation temperature (Tcs); characterized by a target refrigerant temperature mode setting part configured to set a target refrigerant temperature mode to either of a target refrigerant temperature changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) and a target refrigerant temperature fixing mode that fixes the target evaporation temperature (Tes) or the target condensation temperature (Tcs), wherein the target refrigerant temperature changing mode has a fast changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that room temperatures of air conditioned spaces targeted by the indoor units (4a, 4b) reach, in a short amount of time, set temperatures that are target values of the room temperatures and a slow changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that the room temperatures reach the set temperatures in a longer amount of time than in the fast changing mode, and the fast changing mode and the slow changing mode are set by the target refrigerant temperature mode setting part. a fast changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that room temperatures of air conditioned spaces targeted by the indoor units (4a, 4b) reach, in a short amount of time, set temperatures that are target values of the room temperatures and a slow changing mode that changes the target evaporation temperature (Tes) or the target condensation temperature (Tcs) in such a way that the room temperatures reach the set temperatures in a longer amount of time than in the fast changing mode, and the fast changing mode and the slow changing mode are set by the target refrigerant temperature mode setting part.