Abstract: The characteristics of each generation coherence algorithm have been introduced in this paper.Combined with complex structural features of Wangji-Xinzhuang,the eigenvalue coherent technology has found to be of applicability for fault interpretation and fault combination system.Through eigenvalue coherence,small fault and new traps can be effectively identified and practical production problems such as oil-water contradiction,etc can be solved.Through the application of coherence technique,more than 40 traps have been identified in the research area,with 32 wells be deployed and 900.87 ×104 t increased geological reserves be proven.