Formulated under the jurisdiction of the China Elevator Association, jointly with domestic leading elevator operation and maintenance enterprises and IoT technology service providers, this standard has the following core contents: first, defining the scope of intelligent operation and maintenance services, including six core services: real-time monitoring, data collection, fault early warning, remote diagnosis, remote rescue and preventive maintenance, and clarifying the trigger conditions and response time limits of different services; second, refining technical requirements, stipulating the data collection frequency, upload stability and fault identification accuracy of elevator IoT terminals, requiring the fault early warning accuracy to be no less than 95% and the remote diagnosis response time to be no more than 30 minutes; third, standardizing service processes, formulating a closed-loop whole-process specification from fault early warning trigger, remote diagnosis, on-site disposal and result feedback, and clarifying the on-site arrival time limit for emergency rescue (urban area ≤ 30 minutes, suburban area ≤ 60 minutes); fourth, clarifying responsibility division, defining the responsibilities of user units, operation and maintenance units and technical platform parties, requiring operation and maintenance units to establish service ledgers, data backup and customer training mechanisms; fifth, establishing an assessment and evaluation system, formulating assessment indicators from four dimensions: response efficiency, fault disposal rate, customer satisfaction and data accuracy, promoting the standardization of intelligent operation and maintenance services. This standard will improve the efficiency of China's elevator operation and maintenance by more than 30% and reduce the failure rate by 50%, providing a mature standard system for elevator enterprises to export overseas services, and helping Chinese elevator brands build differentiated service advantages in the global market.