Yiban is a new platform for network ideological and political education in universities,and college students are important subjects in the construction of Yiban.This paper made a study on Yiban from a new perspective of college students' engagement,and drew lessons from NSSE,NSSE-China and other college student engagement scale at home and abroad.Besides,the paper analyzed the collected data through questionnaire by using statistical analysis software SPSS19.0 with Chongqing University students samples to build the students' Yiban engagement factor model,which includes environment supporting,recognition,satisfaction,commitment and interaction degrees.It discussed the main influencing factors of college students' engagement and put forward measures and suggestions to improve college students' engagement and bring Yiban's role in network ideological and political education into full play.