Abstract: Under the condition of modern apprenticeship,combined with the dual education,the students with a double identity （school student,business apprentice）participate in internship.In order to further guarantee the teaching quality of modern apprenticeship internship,and effectively avoid some adverse factors,it is necessary to guarantee the internship teaching quality system.From the target management,resource management,process management,monitoring management,it constructs a set of effective internship teaching quality guarantee system,and explains the specific implementation of quality guarantee system,and its result is good.