The invention discloses a hot gas ice mining system. The hot gas ice mining system comprises an evaporator, a gas-liquid separator communicating with the evaporator, a heat exchanger communicating with the gas-liquid separator, a compressor communicating with the heat exchanger, an oil-gas separator communicating with the compressor, a three-way valve communicating with the oil-gas separator, a liquid storage tank and a condenser, wherein the liquid storage tank and the condenser communicate with the three-way valve. The hot gas ice mining system has the effects of improving the working efficiency, saving energy and effectively avoiding the liquid impact problem of the compressor.