A heat pump type hot water supplying system comprising: a heat source unit for outdoor arrangement which contains a compressor, an expansion valve, a heat source side heat exchanger forming a part of a heat pump refrigerating cycle, and contains an outdoor fan and a first controller configured to control the outdoor fan and electric apparatus; a water heat exchange unit for indoor arrangement which is configured to be placed separately from the heat source unit, contains a hot water supplying water heat exchanger, a heating water heat exchanger and first, second, third and fourth valves (17, 18, 19 and 20) forming the remaining part of the heat pump refrigerating cycle, contains a hot water supplying pump configured to lead circulation water to the hot water supplying water heat exchanger through water piping, a heating pump configured to lead circulation water to the heating water heat exchanger through water piping, and a second controller configured to control the pumps (21 and 22) and the valves (17, 18, 19 and 20), the water heat exchange unit being connected to the heat source unit through refrigerant piping and electric wiring; a hot water supplying tank unit for indoor arrangement which is connected to the hot water supplying water heat exchanger and the hot water supplying pump through water piping, and contains a first tank storing hot water obtained by heat exchanging in the hot water supplying water heat exchanger; and a heating tank unit for indoor arrangement which is connected to the heating water heat exchanger and the heating pump through water piping, and contains a second tank storing hot water obtained by heat exchanging in the heating water heat exchanger, Characterized in that the system is configured to return a refrigerant discharged from the compressor in the heat pump refrigerating cycle to the compressor through the first valve, the hot water supplying water heat exchanger, the second valve, the expansion valve and the heat source side heat exchanger and to return it to the compressor through the third valve, the heating water heat exchanger, the fourth valve, the expansion valve and the heat source side heat exchanger, thereby the hot water supply heat exchanger and the heating water heat exchanger are connected in parallel in the heat pump refrigeration cycle. a heat source unit for outdoor arrangement which contains a compressor, an expansion valve, a heat source side heat exchanger forming a part of a heat pump refrigerating cycle, and contains an outdoor fan and a first controller configured to control the outdoor fan and electric apparatus; a water heat exchange unit for indoor arrangement which is configured to be placed separately from the heat source unit, contains a hot water supplying water heat exchanger, a heating water heat exchanger and first, second, third and fourth valves (17, 18, 19 and 20) forming the remaining part of the heat pump refrigerating cycle, contains a hot water supplying pump configured to lead circulation water to the hot water supplying water heat exchanger through water piping, a heating pump configured to lead circulation water to the heating water heat exchanger through water piping, and a second controller configured to control the pumps (21 and 22) and the valves (17, 18, 19 and 20), the water heat exchange unit being connected to the heat source unit through refrigerant piping and electric wiring; a hot water supplying tank unit for indoor arrangement which is connected to the hot water supplying water heat exchanger and the hot water supplying pump through water piping, and contains a first tank storing hot water obtained by heat exchanging in the hot water supplying water heat exchanger; and a heating tank unit for indoor arrangement which is connected to the heating water heat exchanger and the heating pump through water piping, and contains a second tank storing hot water obtained by heat exchanging in the heating water heat exchanger, Characterized in that the system is configured to return a refrigerant discharged from the compressor in the heat pump refrigerating cycle to the compressor through the first valve, the hot water supplying water heat exchanger, the second valve, the expansion valve and the heat source side heat exchanger and to return it to the compressor through the third valve, the heating water heat exchanger, the fourth valve, the expansion valve and the heat source side heat exchanger, thereby the hot water supply heat exchanger and the heating water heat exchanger are connected in parallel in the heat pump refrigeration cycle.