In order to adapt to State Grid the information system from traditional architecture model to transform "large platform + micro application" architecture, used the current advanced technology and architecture design idea proposed solutions, in view of the problems existing in the traditional architecture, with its own unique advantages, from the functional architecture, technical architecture, running architecture provide a design and resolvent. And actually carried out the deployment and implementation in UAP micro application project, provide an example of application effect. Through test and data analyze, obtain the results, that the micro application architecture is convenient of development, operation, and deployment. As a new thing, micro application in technology and management, there are still many problems and need to improve, these will be the next step in the direction of the work.