Abstract:This paper puts forward a new investigation program of flotation tailings pond for secondary exploitation as its characteristics. The new program mainly includes the following procedures: taking samples with luoyang shovel from the top of the tailings dam and dam face scientifically, assaying coarse samples from the top regions of dams, analyzing the grade distribution in the longitudinal from the top of the dam by fitted curve, and then to work out an proportionate relation between coarse grade and the average grade of the tailings, then obtaining average grades of all tailings dam according to revising coarse grades of each tailings dam, calculating the volume of each dam adopting computing methods of geometry, such as horizontal section method, cross profile method, entity model in 3 dimension, finally analyze resource distribution of recoverable mineral. This program has been successfully applied to tailings pond A and C, submitted boundaries, volumes, grade, the amount of tailings contained scheelite and the amount of tailings uncontained shceelite, which would provide reliable resource data for feasibility study and economy evaluation of tailings pond before exploitation. It has solved the problem of tailings investigation, with several advantages of simple operation, high accuracy, low prospecting cost comparing to investigation method of tailing pond with drilling.