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For more severe rainstorm to waterlogging phenomenon, an integrated urban waterlogging monitoring and pre-warning system is designed by using the new technology of mobile GIS and cloud services, in order to allow the general public can easily access and share flood information through the intelligent mobile terminal applications, to escape hedge and participate in disaster relief better. This novel system is based on the data from existing urban road water monitoring systems, providing real-time map rendering of urban road water status and traffic warning, real-time flooding picture sharing, collection and distribution of relevant government solutions and public interests, etc. It consists of two parts:waterlogging monitoring and pre-warning information service platform and smart mobile terminal applications. The mobile web and mobile GIS technologies are used for data communications between these two parts. The "Waterlogging Monitoring e-Police" platform is constructed based on cloud technology and a mobile cloud-based data services and unified management strategy is designed for data exchange. The "Waterlogging Monitoring e-Police" mobile application is developed with mobile web technology. Test shows that this system can support a large number of concurrent access users, simple and effective realization of waterlogging monitoring data information sharing. So it has practical significance for the urban waterlogging monitoring and pre-warning application.