For one of the main causes of vibration failure during transition mode , the rotor rub-impact is a problem. In order to carry out more effective assessment verification and analysis, the current research status and analysis of the gap domestic and abroad were sorted out form the aspects of friction test device, test technology and coating wear test verification. The analysis showed that there was a certain gap between the speed, feed rate and coating heating temperature at home and abroad. And combined with the real operating conditions of the engine, the future development direction was put forward from the airworthiness verification. The development technology and test method of its test device have important engineering guidance for engine fault diagnosis analysis and military/civil aviation engine sealing coating airworthiness validation technology.