Abstract: The financial risk, one of the hardest risks which the overseas mineral investment should be faced, has a significant impact. So the assessment of financial risk is very important for the preparation of overseas mineral resource development. Firstly, this paper classified overseas mining investment financial risk, analyzed the main factors of it, and determined the weight of each index by the Delphi. Secondly, classified each index and built a matter element evaluation model for overseas mining investment. Finally, seven countries include Canada, Australia, America, Russia, South Africa, India and Brazil were assessed. The results showed that the financial risk in America, Russia, Canada, Brazil and Australia belong to moderate and low level, the level of financial risk in India and South Africa are above the average. The model has practical values and conforms to reality.