Zhongyuan oil field is located in Dongpu depression in which crude oil and gas is enriched. After exploration and exploitation for more than two decades,it has become a important oil and gas production base in east China. In this paper the author reviewed Zhongyuan oil field Three Years Science Research, State Keystone Project of Coal gas and Natural gas during the "Sixth Five Year Project" and "Seventh Five Year Project" period. And its contributions to the exploration and exploitation of Zhongyuan oil fiel...