An air-conditioning apparatus including - a main circuit formed by sequentially connecting, through pipes, a compressor, an indoor heat exchanger (3-b, 3-c), a first flow control valve (4-b, 4-c) corresponding to the indoor heat exchanger (3-b, 3-c), a plurality of parallel heat exchangers (5-1, 5-2) connected in parallel with each other, and an accumulator to form at least a heating circuit, and - a first defrosting pipe configured to allow a part of refrigerant discharged from the compressor to branch off and flow into the plurality of parallel heat exchangers (5-1, 5-2), the air-conditioning apparatus being capable of performing a heating-defrosting operation where a specific one of the plurality of parallel heat exchangers (5-1, 5-2) is a heat exchanger to be defrosted and serves as a condenser while at least one parallel heat exchanger (5-1, 5-2) other than the heat exchanger to be defrosted serves as an evaporator, - wherein to perform the heating-defrosting operation, the air-conditioning apparatus is configured to supply, to the heat exchanger to be defrosted, the liquid refrigerant transferred by the liquid refrigerant transporting unit, characterized by further comprising - a liquid refrigerant transporting unit configured to transfer liquid refrigerant from the accumulator to the heat exchanger to be defrosted, - a second defrosting pipe configured to allow the refrigerant flowing out of the heat exchanger to be defrosted in the heating-defrosting operation to flow into the main circuit on an upstream side of the at least one parallel heat exchanger (5-1, 5-2) other than the heat exchanger to be defrosted, and - a first expansion device configured to reduce a pressure of the refrigerant flowing out of the heat exchanger to be defrosted. - a main circuit formed by sequentially connecting, through pipes, a compressor, an indoor heat exchanger (3-b, 3-c), a first flow control valve (4-b, 4-c) corresponding to the indoor heat exchanger (3-b, 3-c), a plurality of parallel heat exchangers (5-1, 5-2) connected in parallel with each other, and an accumulator to form at least a heating circuit, and - a first defrosting pipe configured to allow a part of refrigerant discharged from the compressor to branch off and flow into the plurality of parallel heat exchangers (5-1, 5-2), the air-conditioning apparatus being capable of performing a heating-defrosting operation where a specific one of the plurality of parallel heat exchangers (5-1, 5-2) is a heat exchanger to be defrosted and serves as a condenser while at least one parallel heat exchanger (5-1, 5-2) other than the heat exchanger to be defrosted serves as an evaporator, - wherein to perform the heating-defrosting operation, the air-conditioning apparatus is configured to supply, to the heat exchanger to be defrosted, the liquid refrigerant transferred by the liquid refrigerant transporting unit, characterized by further comprising - a liquid refrigerant transporting unit configured to transfer liquid refrigerant from the accumulator to the heat exchanger to be defrosted, - a second defrosting pipe configured to allow the refrigerant flowing out of the heat exchanger to be defrosted in the heating-defrosting operation to flow into the main circuit on an upstream side of the at least one parallel heat exchanger (5-1, 5-2) other than the heat exchanger to be defrosted, and - a first expansion device configured to reduce a pressure of the refrigerant flowing out of the heat exchanger to be defrosted.