With the increasingly severe energy crisis, the number of electric vehicles is increasing exponentially. A large number of EV (electric vehicle) bidirectional DC/AC converters will have a profound impact on the power quality of the grid. The study of the stability of bidirectional DC/AC converter for EV based on impedance analysis was presented in this paper. The impedance modeling of bidirectional DC/AC converter for EV considering the phase locked loop was derived in the paper, and a relatively simple and effective adaptive phase compensation method is proposed, which is beneficial to improve the stability of bidirectional DC/AC converter for EVs. The effectiveness of the proposed method is verified by simulation experiments.