Post-class assignment is the key part in the process of college education.Whether it is well done or not is essential to teaching quality and the cultivation of undergraduates' comprehensive ability,so it is as important as lectures and exams.By comparing and contrasting them in the universities home and abroad,this paper analyses the general situation of students' contempt for homework assignments as well as the deficiency on the quantity,content and form of post-class assignments.Besides,it also lists some plagiarism phenomenon and issues on feedbacks of homework assignments.To those issues,measures and methods areproposedin terms of conceptualforms,institutionestablishing andfeedbacknetworks to emphasize the value of assignments.