Abstract: The condition monitoring and fault diagnosis of the hoist braking system in our country is studied. The research methods and achievements of different research institutes and enterprises are analyzed and summarized. There are still some defects such as the condition monitoring is not perfect, the ability of multi-fault diagnosis is incompetence, the overall evaluation ability of braking performance is not available. This paper could provide technical support for the health evaluation and intelligent maintenance system of the brake system, which integrates control functions of daily equipment management, on-line monitoring, fault simulation and intelligent maintenance.