“降成本”是我国“十三五”时期推进供给侧结构性改革的五大任务之一。“降成本”重点在于降低企业交易成本,尤其是企业制度交易成本。创新拓展政府向第三方转移部分职能是“简政放权”的“降成本”中关键举措,既是转变政府职能的重要内容,又是创新社会治理的重要途径,还是建设创新型国家的重要手段。一、创新拓展政府向第三方转移部分职能的时代要求创新拓展政府向第三方转移部分职能理论依据主要来自国内外关于公共选择理论、新公共管理理论与市场和政府 Reducing costs is one of the five major tasks of promoting supply-side structural reform in our country during the 13th Five-Year Plan period. “Reduce costs ” The emphasis is to reduce business transaction costs, especially the transaction costs of the enterprise system. Innovating and Expanding the Government’s Transfer of Some Functions to Third Parties is a Key Move in “Reducing Costs” of “Simpler and Larger Powers”, which is not only an important part of transforming government functions but also an important way to innovate social governance or an innovative country The important means. I. Innovation and Development The times when the government transfers some functions to a third party require innovation to expand the government’s transfer of some functions to a third party. The theoretical basis mainly comes from domestic and foreign public choice theories, new public management theories and markets and the government