Teacher educators have been endowed with new connotations of the times, which are embodied in the integration of theory and practice, the promoter of “Internet+Education”, the crossover of subject integration and the behavior demonstrator of prospective teachers under the background of new liberal arts. However, at present, teacher educators are faced with the role dilemma of focusing on teaching and neglecting education, emphasizing theory and neglecting practice, and becoming the eliminator of the new generation of information technology and the executor of discipline separation. Based on this, we can remold the role of teachers and educators under the background of new liberal arts by establishing and perfecting the system of remolding the role of teachers and educators, constructing the cooperative mechanism of remolding the role of teachers and educators, and improving the ability of remolding the role of teachers and educators.