Abstract:In view of the current situation of tailing ponds in our country, this paper analyzes main features from quantities, distributions, levels, type and risk condition, and summarizes main segments of environmental risk control. Based on the environmental risk situation of tailing ponds, the paper points out the procedure and method of environmental hidden danger investigation. And technical outlines were proposed from policy, harmful consequence, environmental sensitivity and system reliability. Finally, one tailing pond in Xingtai City of Hebei Province is chosen as the example to illustrate the important function of providing technical support for formulating hidden danger investigation report for enterprises and reducing environmental risk at the source.