Based on the problems of intelligent substation secondary equipment configuration, maintenance and control system, combined with the philosophy of software engineering, an integrated multitask software platform based on OSGi&RCP was indicated. The framework is based on Java dynamic module OSGi and Eclipse RCP. Combining service oriented communication mechanism and the plugin interface and implementation phase separation in the package to minimize dependence on design method, has realized the system users, business oriented looselycoupled integration, has solved the traditional software architecture in the development, deployment, and engineering application on cycle is long, the defects of lack of flexibility, achieve the effect of modularity “plugin”.The feasibility and superiority was approved by application.