The maturity of interactive network technology provides a more convenient platform and a broader context for the commu- nication between teachers and students. The educational ideal,pursuit and emotion of teachers and students can be responded and sat- isfied to a certain exten. Theoretically,the construction of teacher - student relationship in virtual interactive scenes should be a be- nign,in - depth and gradual process. However,its construction shows obvious practical contrast. The main language differences lead to less dialogue and communication between the two parties. The decentralization of nodes leads to poor communication effect between them. The weakening of interaction field leads to the lack of emotional integration,and the freedom of interaction space leads to the weakening of motivation for the construction. From the perspective of constructing the interest community of cooperative learning,it is the proper choice to solve the problem of teacher - student relationship in virtual interactive scene by establishing the basic language ba- sis of teacher - student dialogue,integrating the necessary time allocation of teacher - student communication,integrating the important emotional expression of teacher - student interaction,and strengthening the endogenous construction power of teacher - student coopera- tion.