Data mining technology has changed the way people understand data and analyze data to a large extent. The technology belongs to a new kind of information processing technology, which can provide information support to the decision makers and make for promotion of integrated development of educational reform. At present, the educational management system in colleges and universities mainly centers on the handling of daily routines, and the mass data merely realized the storage instead of exerting its function, besides, the significance hidden in the mass data often has not been discovered. Therefore, starting from the definition of data mining, the paper analyzed the necessity of application of data mining technology in the educational management system, and then studied the application of data mining technology in the educational management system. Keywords: Data Mining; Colleges and Universities; Educational Management System; Application DOI: 10.7176/JEP/11-8-14 Publication date: March 31 st 2020