An experimental device is designed to measure the thermal eonductivity of pure ice and salt impurit based on ingenious indirect steady-stated method. The results show that the thermal conductivity of pure iceremains unchanged at this temperature , while thermal eonduclivity of ice added NaCl impurity is lower than that of pure ice. Additionally the thermal conductivity of ice is decrease with the increasing of NaCl impurit concentration, The principle of the device is simple and easy to implement, the operation is simple ancrepecat able, and the measurement results are accurate, This study is also an expansion of the experimen* Measurement of thermal conductivity" in “ Basie Requirements for Physies Experiment Course Teaching in Seience and Engineering Universities ( 2023 edition)" ,which reached to the requirements of Class C ,and hascertain research significance for promoting physics experiment teaching.