Support Vector Machines (SVM) is powerful classification and regression tools. They have been widely studied by many scholars and applied in many kinds of practical fields. But their compute and storage requirements increase rapidly with the number of training vectors, putting many problems of practical interest out of their reach. For applying SVM to large scale data mining, parallel SVM are studied and some parallel SVM methods are proposed. Most currently parallel SVM methods are based on classical MPI model. It is not easy to be used in practical, especial to large scale data-intensive data mining problems.