Chassis　Multi-Agent　System　(MAS)　integrated　cooperation　control　was　presented　in　this　study　in　order　to　satisfied　the　cooperation　control　request　about　suspension　and　steering　by　vehicle　dynamic　performance.　For　eliminate　mutual　interference　between　Semi-Active　Suspension　(SAS)　and　Electric　Power　Steering　(EPS),　SAS,　EPS,　and　System　(SYS)　agents　were　being　built　out.　MAS　cooperation　control　framework　was　proposed　based　on　agent　template　JATLite.　For　illustrate　clearly　treatment　process　and　resolve　conflict　model　of　SYS　agent　cooperative　control　SAS　agent　and　EPS　agent,　connected　MATLAB/Simulink　to　simulate　feasibility　of　cooperation　control.　And　experimented　on　vehicle　test,　contrasted　experimentation　results　of　adaptive　fuzzy　and　MAS　integrated　control.　The　results　show　that　MAS　integrated　cooperation　control　can　be　effectively　employed　to　a　vehicle　to　improve　both　riding　comfort　and　handling　stability.