After　decades　of　development,　China’s　GDP　has　ranked　second　in　the　world,　second　only　to　the　United　States.　As　a　key　development　area,　Beijing,　the　capital,　has　invested　a　lot　of　resources　to　promote　urban　construction.　However,　China’s　extensive　economic　development　model　has　brought　about　increasingly　serious　environmental　issues,　especially　the　deterioration　of　air　quality.　In　order　to　deal　with　these　problems,　Beijing　has　taken　a　series　of　Countermeasures　in　this　century,　and　has　successfully　reduced　pollution　and　improved　urban　air　quality.　This　paper　investigates　the　air　control　measures　in　Beijing,　and　analyzes　the　actual　effects　of　these　measures　through　actual　data.　The　research　shows　that　the　measures　taken　by　Beijing,　such　as　source　control,　traffic　control　and　energy　improvement,　have　obvious　effects　on　improving　air　quality.　The　discharge　and　annual　average　concentration　of　all　major　pollutants　have　decreased　significantly.　The　case　of　Beijing　thus　could　be　taken　as　a　reference　for　cities　and　countries　that　are　facing　similar　problems　in　poor　air　quality.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Switzerland　AG　2024.