The SKA/ CIMS-CO-A continuous online carbon emission monitoring and analysis system is A fixed emission source monitoring system developed by our company according to the current status of carbon emission monitoring. It only needs to directly measure CO2, CH4 concentration, flue gas flow rate and humidity and other parameters to obtain emissions. The data accuracy is greatly improved, and the modular design and simple operation have obvious advantages. The system can realize real-time, precision and automation of carbon emission accounting. Compared with carbon emission data of material accounting, this system uses real-time monitoring data to establish a carbon emission accounting method system based on monitoring data, which can further improve the accuracy and real-time of carbon emission accounting data.