A network-based air-conditioning equipment remote monitoring and management system is proposed, which is designed for use with a network system to allow the user to carry out monitoring and management tasks on one or more remotely-located air-conditioning equipment systems in a real-time manner via the network system. The proposed system is characterized by the provision of a user-operated network-based real-time monitoring and management function for remotely-located air-conditioning equipment, the capability to provide efficient and cost-effective management in the utilization of air-conditioning equipment for saving energy and cost, and the capability to provide real-time warning of abnormal operating conditions of the air-conditioning equipment.