According to the requirements and application scenarios of the integrated service system for knowledge organization related tools, the paper proposes the integrated framework for Science and Technology Knowledge Organization System (STKOS)-related tools based on OSGi as well as the design idea and main processes of plug-in packaging based on this framework, and elaborates its implementation effects. The packaged plug-in can be registered and stored into the system plug-in library automatically for sort management, version and life cycle management. They can also realize the assembly or independent operation of work processes and provide the download service for STKOS users to use as required.