An air-conditioning apparatus, comprising: a compressor, an outdoor heat exchanger, a first expansion valve, a refrigerant container, a second expansion valve, and an indoor heat exchanger sequentially connected by refrigerant pipes in a refrigerant circuit; and an expansion valve control unit configured to regulate an opening degree of the first expansion valve and an opening degree of the second expansion valve; and a temperature sensor configured to detect a temperature of an inlet of the indoor heat exchanger, a temperature sensor configured to detect a temperature of an outlet of the indoor heat exchanger, and a temperature sensor configured to detect a temperature of indoor air flowing into the indoor heat exchanger, wherein the degree of superheat at the outlet of the indoor heat exchanger is calculated by subtracting the temperature of the inlet of the indoor heat exchanger from the temperature of the outlet of the indoor heat exchanger, characterized in that the compressor includes a capacity-controllable inverter compressor, in that the air-conditioning apparatus comprises a temperature sensor configured to detect a discharge temperature of an outlet of the compressor, and in that the expansion valve control unit is configured to, when a difference between an indoor suction temperature and a set indoor temperature is equal to or less than a temperature reference value and an operation frequency of the compressor is equal to or less than a frequency reference value, regulate the opening degree of the first expansion valve such that a degree of superheat at an outlet of the indoor heat exchanger reaches a target degree of superheat, and regulate the opening degree of the second expansion valve such that a discharge temperature of the compressor reaches a target discharge temperature. a compressor, an outdoor heat exchanger, a first expansion valve, a refrigerant container, a second expansion valve, and an indoor heat exchanger sequentially connected by refrigerant pipes in a refrigerant circuit; and an expansion valve control unit configured to regulate an opening degree of the first expansion valve and an opening degree of the second expansion valve; and a temperature sensor configured to detect a temperature of an inlet of the indoor heat exchanger, a temperature sensor configured to detect a temperature of an outlet of the indoor heat exchanger, and a temperature sensor configured to detect a temperature of indoor air flowing into the indoor heat exchanger, wherein the degree of superheat at the outlet of the indoor heat exchanger is calculated by subtracting the temperature of the inlet of the indoor heat exchanger from the temperature of the outlet of the indoor heat exchanger, characterized in that the compressor includes a capacity-controllable inverter compressor, in that the air-conditioning apparatus comprises a temperature sensor configured to detect a discharge temperature of an outlet of the compressor, and in that the expansion valve control unit is configured to, when a difference between an indoor suction temperature and a set indoor temperature is equal to or less than a temperature reference value and an operation frequency of the compressor is equal to or less than a frequency reference value, regulate the opening degree of the first expansion valve such that a degree of superheat at an outlet of the indoor heat exchanger reaches a target degree of superheat, and regulate the opening degree of the second expansion valve such that a discharge temperature of the compressor reaches a target discharge temperature.