Data mining component library based on software re-usage can resolve this dilemma. Large number of components in the component library can rapidly
construct application system of different fields which greatly increase the re-usage efficacy and system development, and reduce the cost. Few
researches have deal with the data mining component library. In [5], an idea of component data mining system is presented, but the concrete research is not involved. In this paper, we implements varied core algorithms of data mining in the form of components, and use the component library to support the classification, storage, retrieval and extraction of the components. It can provide an effective component re-usage environment for data mining, which significantly improves the efficiency and quality of data mining.