How to solve the problem of precise poverty alleviation and shaking off poverty in the whole country, ensure the precise target of poverty alleviation, the precise arrangement of projects and the precise use of funds, has become an important problem that the central government urgently needs to solve. Fujian Provincial Department of Finance takes the lead in researching and developing the Fujian Province online supervision system of poverty alleviation (benefiting people) funds by using advanced technologies such as big data, cloud computing, and microservice, so as to realize the accurate monitoring of the whole process of poverty alleviation (benefiting people) funds and ensure the accurate distribution of funds. In this study, the system architecture, key technology application, implementation effect and construction experience of the system are described in detail. The construction experience of this system can provide reference for other fields of national construction to use technologies such as big data, cloud computing, and microservices.