Abstract: In recent years, the energy shortage has brought serious influence to social development andpeople's life.Thereinto, oil safety problem has become the biggest obstacle that we must face in economic development. In such circumstances, how to give scientific and reasonable analysis to Chinese petroleum security situation is significant. Based on the previous studies, this paper adopt grey matter-element method to evaluate 10 years' oil security situation by seven core index.The empirical results show that gray matter-element analysis method has certain practical value in oil safety evaluation.