The remote monitoring and fault diagnosis platform of the GNSS/MET monitoring network is designed based on the maintenance and maintenance method of GNSS/MET water vapor monitoring equipment. The platform is designed by B/S mode, which can realize the realtime monitoring of GNSS/MET equipment running state parameters and the automatic diagnosis of equipment faults, and provide the technical support of fault treatment and the management of equipment sites. The platform has been put into operation, provides not only the realtime operation state information of equipment for technicians on duty in both the provincial center and the stations, but also the technical support for rapid troubleshooting, and improves the operation security limitation of the GNSS/MET water vapor monitoring equipment.