Abstract:In the paper, sand resources and illegal sand excavation in Nansihu Lake have been introducedand, difficulties faced in hitting illegal sand mining has been analyzed. Poing to these aspects, some countermeasures are put forward to sovle the problem, such as joint law enforcement normalization, the establishment of law enforcement mechanism of coordination between departments, holding a forum to promote the legislation, making Nansihu Lake resources and environment protection planning, enlarging the funds investment and strengthening publicity and education.