The current trend of learning is towards distant learning. Using distance learners¡¦ learning portfolios recorded by Web Site can help teachers understanding the learning state of students. Teachers can encourage or supervise students through Email based on their different behavior. Eventually, we hope to enhance students¡¦ participation and interest when they are attending distant learning. We develop learning support mechanisms using portfolios in order to help teacher understanding the learning status of students conveniently and easy to apply mechanisms in distant learning environment. Finally, we will assess the effects of mechanisms to prove it can help students positively. The results will drawing in two parts. First, students accepted encouragement and supervision from teachers were enthusiastically than students don¡¦t accepted encouragement and supervision from teachers when attended each unit of test and synchronous conference. Second, according the questionnaire appears both groups of students agreed that teacher should encourage or supervise them according their learning behavior. In a word, students really need help from teacher at the right moment. And our research have proved that distant learning environment need provide convenient mechanisms for teachers.