The invention relates to a method and system for quickly accessing a centralized control platform, and the method comprises the steps that the centralized control platform judges whether the attributeinformation obtained from an access device exists or not, and determines the first coding information of the attribute information according to a judgment result; when the centralized control platform receives a request of an access device, the centralized control platform establishes connection with an external network device and obtains a communication point table of the access device, and thecommunication point table at least comprises attribute information of the access device and second coding information of the attribute information; and the centralized control platform maps the firstcoded information with second coded information corresponding to the corresponding attribute information, and establishes communication between the centralized control platform and the access equipment according to a mapping result. The access method provided by the invention can effectively shorten the access time for the new energy power station to quickly access the centralized control platformand improve the access efficiency.