Software framework brings lots of conveniences for software reuse in specific domains. But with the development of business systems, traditional component-based software framework has become increasingly incompetent to meet the developmental requirements of business systems development. Service-oriented architecture (SOA) is a new bright software architecture with great flexibility and scalability to support the developmental requirements of business systems. But in the absence of specific guidances or specification, developing SOA application is very difficult task. Service Component Architecture (SCA) is the best one of all SOA development approachs. So study and research of SCA approach will be very useful for rapidly developing SOA-based applications. In this paper, the basic concepts of SCA will be introducted, and the SCA basic structure will be analyzed. Following these results, the SCA framework meta-model and a study result of implementation extension will be given. Then a specific example is given.