At present, some power consumption management system of airport mainly focuses on overall energy increase, and focuses less on the underlying technologies required for refined energy conservation and emission reduction strategies. Based on the narrowband internet of things (NB-IoT) technology, the existing power consumption information acquisition architecture of the airport is improved. By optimizing the acquisition communication link and analyzing the power outage events, seven intelligent operation and maintenance analysis strategies for faults are summarized. The system operation results show that the proposed acquisition architecture can improve the data acquisition frequency to 288 point eachday, and the intelligent operation and maintenance method can quickly locate the fault in 5 minutes. The improved energy collection system can provide more fine-grained atomic energy consumption data and lower failure rate, help to formulate relevant energy-saving strategies and energy consumption management measures, and improve the effectiveness of airport energy consumption management.