Abstract: The paper selects the exploration and operation activities of Sinomine Resource Group Co., Ltd. in Africa as a case, and analyzs the influential and success factors of three foreign market entry modes of Sinomine Resource, including “exploration and techniques service”“exploration and stock or mining rights” and “exploration and mineral trade”, respectively.The results show that the foreign market entry mode is of progressive, which is dynamically adjusted according to the different development stages of Sinomine Resource.And there are multiple modes existed in the same development phase of enterprise.Secondly, the gap development strategy, market differentiation strategy and focus strategy all have important influence on the choice of the foreign market entry mode.Furthermore, alliance, countercyclical development and industrial cluster are vital to the performance of overseas business.Finally, the gap development mode of Sinomine offers a reference for other medium-sized and small enterprises in domestic market.