Abstract: In the context of the global allocation of resources, FDI(foreiggn direct inuestment) for mineral resources which is the key ring of China’s "Going Out" strategy has become the effective measures to ease the contradictory of insufficient supply of mineral resources during the process of industrialization and urbanization, and it's success or failure determines whether China can achieve economic and social sustainable to some extent. Due to the fact that FDI for mineral resources owns the traits of high investment, long investment cycle, multiple uncertainties and others, it's important to carry out effective risk assessment for FDI for mineral resources. Therefore, according to the characteristics of conduction mechanism of FDI for mineral resources, it's pointed out that the traditional AHP method is not applicable, and it's more reasonable to adopt ANP with Group Decision Making- Grey Fuzzy assessment, together with giving specific use by related computer software.