Nowadays, the wear / contact fatigue failure behavior research on plasma sprayed coating mainly focus on the following aspects: wear failure and contact fatigue failure. In this paper the achievements both at home and abroad were reviewed. Studies on only one of the failures ( contact fatigue failure or wear friction failure) have their shortcomings, as pointed out in this paper. The research on rolling / sliding competition failure gives a persistent guide on engineering practice and is the orientation of fatigue / wear failure research in the future.