To　meet　the　requirement　of　high　temperature　of　solar　heat　transfer　and　thermal　storage,　the　industrial　applications　of　the　high　temperature　heat　transfer　materials　were　introduced　and　a　new　kind　of　high　temperature　molten　salt　based　on　sodium　chloride,　potassium　chloride　and　magnesium　chloride　anhydrous　was　prepared.　Thermal　properties　of　the　molten　salt　had　been　measured　by　differential　scanning　calorimeter　and　the　experimental　results　showed　that　it　was　applicable　to　high　temperature　storage.　DSC　analysis　showed　that　the　high　temperature　molten　salt　had　preferable　thermal　stability　and　it　was　one　kind　of　perfect　high　temperature　heat　transfer　materials.