According to the results of boiler energy efficiency testing and investigation in a certain city since 2017,it is found that the energy efficiency of industrial boilers in the city is generally low,and the average thermal efficiency is mostly lower than the national requirements for the thermal efficiency limit of industrial boilers.By comparing the existing industrial boilers in the city with domestic and international advanced levels,it is shown that the energy-saving potential is enormous.By analyzing the specific reasons for the low energy efficiency of industrial boilers in the city,this study proposes medium to long-term energy-saving strategies for industrial boilers,in order to provide reference and support for relevant departments in the implementation process of specific projects.