Since the 18th CPC National Congress, historic achievements have been made in China"s anti-poverty work. Behind these achievements is the national governance system and its corresponding operating mechanism. The administrative subcontract is an important informal system in the fight against poverty. Under - agents, local government set up in the form of "fixed lump sum w, recall, removed negative constraints, such as under the pressure type system to achieve the extraordinary mobilization. The core of the administrative subcontract is to assign responsibility to individuals. With the local power of "blocks", it integrates the "rules" at the same level and the "blocks" at the lower level. The high level promotes the accurate sinking of projects, talents, funds and policies to the grassroots level, thus realizing the full participation of the state, the market and the society. However, the tension and contradiction within the system also tend to intensify the contradiction between the main body of the poverty alleviation, and at the same time, the difference in performance of poverty alleviation is caused by the department of the poverty alleviation. The proposal of grassroots administrative subcontract in poverty alleviation extends and extends the scope of application of administrative contract system, revises and improves the theory of administrative contract system, enriches the "governance of China" in poverty alleviation, and provides a mechanism for reference for the effective connection between poverty alleviation and rural revitalization.