Abstract: Urban rail transit train operation control system failure affects train efficiency once occur. Current maintenance management mode is no longer meeting the developing operation requirements. Therefore, it is necessary to use health management and failure early warning to establish an intelligent operation and maintenance system of higher efficiency. The multiunit information of train operation control system is mon-itored using intelligent operation and maintenance algorithm, and the system operation information is correlated with the early stage subtle fault characteristics, realizing the judgment and early warning of the system health. Scientific operation and maintenance strategies are formulated based on maintenance plan, improving the intelligent operation and maintenance system reliability and reducing the probability of failure occurrence and operation cost.