The invention discloses a cloud platform network monitoring system, comprising a cloud platform, wherein the cloud platform comprises databases, a matching analysis module and a data conversion module, the databases comprise an information registration database, a monitoring information database, a maintenance information database, a manual entry information database, a matching database and a device geographic position database, and the data in the information registration database, the monitoring information database, the maintenance information database, the manual entry information database, the matching database and the device geographic position database are all stored in a memory. The cloud platform network monitoring system relates to the technical field of network monitoring. According to the cloud platform network monitoring system, various monitoring information is stored in the databases of the cloud platform, so that the cloud platform can freely schedule the information in the databases, in this way, the data interaction of the cloud platform network monitoring system is more convenient and faster, the information collection and use are more comprehensive in use, andthe information obtained by the monitoring cloud platform is more complete.