This paper makes a comprehensive analysis on the state of the field of DSSG. On this basis, it brings forward the design framework of DSSG based on component technology, and makes further research on the component-based design ideas, including design of method base based on MATLAB, design of model base based on recommend technology, design of knowledge base based on data mining, and design of humancomputer interaction based on Flex. At last, it elaborates the establishment of technical system of DSSG.