A remote management system for Customer premises equipment WAN Management Protocol (CWMP) is provided. The remote management system includes at least one CPE (Customer Premises Equipment) and one server coupled to the CPE via a network. The CPE transmits a request to the server via the network. The server processes the request from the CPE according to a processing order, wherein the server provides a table which contains forecasted processing times for commands of a plurality of data models compatible with the CWMP. Upon receiving the request, the server generates a command configuration document according to the request, forecasts and obtains a first processing time corresponding to the command configuration document, and then dynamically adjusts and arranges the processing order for processing the request in the server according to the first processing time and a maximum waiting time corresponding to the request.