Abstract: Reconstruction of curricular system for undergraduate course in machinery or relevant major field under the“3+1”personnel training pattern is discussed；the measures of teaching reform on related courses and practice links are proposed. The implementation of“3+1”personnel training pattern is an innovation to the existing training mechanism of undergraduate course majored in machinery，which can improve engineering practical and innovational abilities of undergraduates.

Key words: “3 + 1”personnel training pattern, undergraduate course majored in machinery, teaching reform, practical segment