Based on the principle of measuring the thermal conductivity of materials by the hot wire method and the semiconductor refrigeration sheet，the thermal conductivity experimental device of ice was designed and fabricated，which was placed in the freezer with the circulating water cooling system to measure the thermal conductivity of ice．The measurement process is to use the platinum wire as the hot wire and the Kelvin four-wire wiring method，use the measured voltage and current to calculate the resistance value of the platinum wire at the corresponding temperature，and then convert the resistance value at the same temperature of Pt100，and record the corresponding time，and find the rate of change of temperature with the logarithm of time．Therefore，the thermal conductivity of the ice to be measured is between 1．5～2．7 W/(m·K)at －28．7～ －1．23 ℃，and the thermal conductivity of the ice increases with the decrease of temperature，and the relationship can be accurately fitted by Origin software．