Turn of the century, with the rapid development of database and network technology, we produce and the ability to collect data has been rapidly increasing, a large amount of data stored in databases and data warehouses, we have been submerged in the vast ocean of data and information. People need to have a new, more effective means to a variety of large amounts of data mining in order to realize their potential, data mining is to generate and rapidly developed applications in such environments, it appears to automatically and intelligently put massive data transformation provides a means for useful information and knowledge. This article will combining data mining and e-commerce, introduced the data in e-commerce information platform mining methods, so as to provide reference for the information network of employees, in order to better analyze the hidden relationships between data and model, master user preferences, provide personalized marketing decisions for decision support network platform, to reduce the risk.