Energy，industry and transportation are the three major sources of carbon emissions. The development and application of low-carbon technologies in various fields are the key to achieving carbon peak and carbon neutrality. In the field of energy，clean energy technologies such as wind power，photovoltaic（PV），nuclear power and biomass power generation have developed rapidly. In 2021，the installed capacity of wind power in Fujian Province reached 7.35 million kW，with a year-on-year growth of 51.2%；the installed capacity of PV reached 2.77 million kW，with a year-on-year growth of 36.9%；the installed capacity of nuclear power reached 9.86 million kW，with a year-on-year growth of 13.2%. In the industrial field，direct reduction ironmaking technology and electric arc furnace steelmaking technology in the iron and steel industry have developed rapidly；carbon-free electrolytic aluminum technology，rotary floating smelting technology and nonferrous metal recovery and recycling technology in the nonferrous metal industry continue to iterate；technologies such as crude oil steam cracking technology and shift gas alkali production technology in petrochemical and chemical industry lead process innovation；collaborative waste disposal technology of cement kiln，raw material substitution technology，energy-saving process transformation technology and carbon capture，utilization and storage（CCUS）technology in the building materials industry have promoted energy conservation and carbon reduction in the cement production process. In the field of transportation，the development of power battery technology and the improvement of charging facilities promote the penetration rate of new energy vehicles and the development of port shore power technology and battery power technology promote the gradual application of new energy ships；electric locomotive technology takes the leadingposition in the world and is widely used in China. In the context of the nationwide in-depth promotion of the goal of carbon peak and carbon neutrality，it is expected that the proportion of clean energy supply in Fujian Province will continue to increase in 2022，industrial energy-saving and consumption-reduction technologies will become the key point of development，and new energy vehicles will be widely used.