Abstract: Taking the question types of examination papers and students’ answer data in general colleges and universities as the research object, the idea of data mining in examination paper analysis is introduced in order to solve the problem of teaching improvement which is closely related to the practical application. By applying data mining technology to test paper analysis, we can show students’ mastery of different knowledge points more efficiently through the relevant data in the test paper, and predict the reasonable degree of questions in the test paper, so as to provide reference for teachers to further improve teaching.