In the traditional power grid,demand response has been realized by manual operation,which is not only inefficient,but also prone to business processing errors.This paper adopts a reasonable interface design method and the division of functional modules to design and implement the "self-response" function in the demand of digital power grid,focusing on the application interface of "self-response" data resource sharing service,so as to meet the automation needs of power grid development.Based on the investigation of market and user needs,this paper analyzes the design link of business,and studies the composition and structure of response information exchange system.The system design adopts the three-tier architecture mode,designs the client and server that need "self-response",and studies the key technologies combined with the functional modules,which has practical guiding significance for the research in this field.