The intelligent monitoring and maintenance of urban road drainage facilities is the key to improving urban waterlogging prevention capabilities. This paper analyzes the current situation of drainage facility maintenance management, explores the construction scheme of monitoring system including facility monitoring, operation evaluation, and early warning forecasting, and studies the maintenance system elements such as maintenance standards, team building, and quality control. Based on this, a practical collaborative mechanism for intelligent monitoring and maintenance is proposed, forming a complete closed-loop covering daily maintenance, emergency response, and efficiency evaluation. Practice has proven that this system can effectively improve the operation and maintenance level of drainage facilities and provide security for urban safety operations..