Abstract: This paper combines data mining with cloud computing and uses the services model of cloud computing to design the data mining application platform.Firstly,we put forward a cloud computing service hierarchy that contains three levels and four modes.And then,this hierarchy is used in designing the data mining application platform.Finally,we propose a framework of data mining application platform based on the service models of cloud computing,and elaborates the functions of each subsystem and features of this platform.The platform integrates a variety of algorithms about data mining,and it possesses a good generality and expansibility.