In order to solve the issues such that function module of the traditional housing maintenance fund management system is complicated, the process of development and maintenance is tedious, and the new demand is difficult to deal with in time, the system design and development based on the micro service architecture is proposed. This study designs a residential maintenance fund management system based on micro service architecture, and divides the system into several micro service modules. The system uses Spring Cloud to build a micro service architecture, and implements the technology of service registration and discovery, load balancing, routing gateway, and fault tolerance processing, and finally implements various micro service functions. The micro service framework reduces the coupling of the system, speeds up the development cycle of the system, and makes the deployment and maintenance of the system more convenient.