Based　on　the　second　quarter　of　2008　to　2014　construction　of　Beijing　in　the　fourth　quarter　GDP　quarterly　data　on　concentrations　of　PM2.5　emissions　with　Beijing　and　Beijing　agricultural　output,　output　value,　gross　output　value　of　Beijing＇s　food　and　beverage　industry　as　a　control　variable,　Use　of　VAR　models　and　Eviews8.0　measurement　software,　building　construction　industry　development　in　Beijing　and　the　relationship　between　the　concentration　of　PM2.5　emissions　model　study　on　the　building　industry　and　the　relationship　between　PM2.5;　results　showed　growth　of　gross　output　value　of　construction　on　the　concentration　of　PM2.5　emissions　in　Beijing　have　certain　adverse　effects　and,　finally,　on　the　construction　of　Beijing＇s　construction　industry　development　and　PM2.5　emissions　suppression　lines　put　forward　the　policy　of　energy　saving　and　green　building.