The　intersection　is　the　critical　node　in　city,　and　has　important　influence　on　traffic　flow.　Whether　the　intersection　is　controlled　reasonably　is　the　key　to　the　safety　and　efficiency　of　the　intersection.　In　view　of　the　current　urban　intersections　lack　of　signal　control　mode,　typical　intersection　of　Beijing　Huairou　is　selected　as　main　object　of　study.　LOS　is　chosen　as　Performance　Index,　2000　simulation　tests　of　different　levels　of　demand　are　designed　by　using　Traffic　simulation　software,　each　test　is　made　respectively　with　pre-timed　control　and　semi-actual　control.　The　Choose　figures　are　given　as　the　base　of　the　intersection　control　types　and　comprehensive　benefits　for　intersection　analysis.　©　(2012)　Trans　Tech　Publications,　Switzerland.