Abstract：It is significance to carry out co-control effects assessment for improving air quality and reducing carbon emissions under the national strategic objectives of carbon peaking and carbon neutrality. In this study， the co-control effects coordinate system， co-control cross-elasticity analysis and synergy evaluation index methods are used to evaluate the benefits of co-control for SO2， NOx， PM10， VOCs and CO2 base on emission reduction measures screening and emission reduction calculation. The results show that the emission reduction potential of SO2 and NOx is more than 20%， and the emission reduction potential of CO2 is about 7%. All the emission reduction measures are able to achieve co-reduction of NOx， PM10， VOCs and CO2 emissions. The analytical results of co-control effects coordinate system and synergy evaluation index analysis show that replacing coal-fired with clean energy and reducing local thermal power generation obtain the higher co-benefits of SO2 and CO2， and promoting new energy vehicles has the highest co-benefits of NOx， PM10， VOCs and CO2； the analytical results of co-control cross-elasticity analysis shows that promoting ultra-low energy buildings， renewable energy for heating， energy-saving gas wall hanging furnace， phasing out and upgrading high-emission vehicles and reducing vehicle use intensity could reduce SO2 and CO2 emissions equally or NOx and CO2 emissions equally or PM10 and CO2 emissions equally， with a high degree of coordination. Therefore， the co-control suggestions from the perspectives of life cycle assessment investigation has been proposed which could provide reference for the future research of co-control and the technical support for the management decision of air pollution control and low carbon development in Beijing.