Abstract: This paper,using static and dynamic game models,describes county- levelgovernment’s strategy choice in intergovernmental relations and discusses the paths to promote government’s collective interests.Conclusions are drawn that,firstly,governments’ cooperation is conductive to collective efficiency,no matter how their governance capability differs.Secondly,during the limited term of office,the individual government with similar governance capability will adopt competitive strategy to achieve the goal of maximum interests,provided that no outside interference is involved.Interference from the superior government will impel individual government to take cooperative intergovernmental relations.Finally,under the circumstances of unlimited term of office,if government at different levels can increase trust with each other or if or if it has the potential of promotion,they may continuously adopt cooperative strategies at the earlier stages so as to gain better interests.It is noticeable that individual government will choose competitive strategy at the final stage.

Key words: intergovernmental relations, cooperation, strategy, integration