¡@With the change of economic globalization, the national security is no longer just the traditional nation defense or military security. Economic, political, diplomatic, technological, cultural, environmental and other fields related to national development are gradually considered into the scope of national security. Among, Economic security is the core of national security now. The protection of economic security concern about nation development, such as nation defense, diplomacy, and the standard of people¡¦s living. Not only every department in nation is interdependent with each other, but also any economy can't live alone. Economic development has closely relationship with the use of energy. No matter developed countries or developing countries, their reliance various energy are increasing (especially oil); however, because of the limited resource endowment, the energy competition is one of leading to the tense international relations. ¡@The distribution of oil is uneven. Middle East has more than half of the crude oil reserve, and the top ten largest oil reserve countries hold the 80% of the world¡¦s total reserve. But, the most two oil consumption region, North America and Asia Pacific, only own 8.7% oil reserve. United States and China are the largest oil consumption countries, while United States oil dependency is above 60%, and almost 60% of China¡¦s oil demand need to import from other countries. In order to sustain economic development (need enough oil energy), the imbalance of demand and supply let China and other oil-consuming countries have to negotiate with the oil-producing region - Middle East, Central and South America, and Africa. Africa is one of China¡¦s oil import region. China strengthen Sino-Africa relation through leader conference, high-level visits, Forum on China - Africa Cooperation, China¡¦s oil company¡¦s energy investment in Africa, economic aid, infrastructure and other diplomatic measures. The comprehensive cooperation contributes China to get Africa's oil resources.