The education of BIM information technology has become a research hotspot in architectural universities. This paper takes BIM information technology application as education innovation of architectural universities, and makes a research of the BIM revulsion mechanism in four aspects:education technical support, innovative resources network, teachers' teaching ability and absorptive capacity of students, 24 induction factors are taken into consideration. The system dynamics (Vensim) is used to reveal the inter-relationships among those factors. Results indicate that the education technical support and innovative resources network are the basis of promoting BIM information technology education innovative behavior, teachers' teaching ability is the key to carry out the BIM information technology education innovative behavior, the absorptive capacity of students is the focus of BIM information technology education innovative behavior. This study provides guidance for improving the BIM information technology innovation.