Abstract:The gold grade of the gold mine is 15 g/t，the form of gold mainly in silver gold with natural elements，part of it in pyrite with isomorph，and a small amount of it in quartz and mica with microgranular inclusions，due to the existence of the gold form is more complicated，The research of thegold recovery from gangue minerals is very important for us，the test use the gravity—flotation—cyaniding joint process，when we get the high grade concentrate，the gold grade of tailingsreduce to less than 0.5g/t。.