Pile　barriers　have　been　broadly　used　to　decrease　the　effect　of　ground　vibration　generated　by　machines　or　traffic.　However,　so　far,　the　research　about　the　model　test　of　vibration　isolation　of　pile　barriers　is　very　few.　In　the　present　paper,　the　basic　properties　of　the　soil　in　the　concrete　model　box　are　determined　by　the　basic　properties　test　of　the　soil　firstly.　Secondly,　through　the　model　tests　with　two　types　of　piles　under　different　vibration　frequencies,　the　influences　of　different　factors　on　the　vibration　isolation　effect　of　pile　barriers　are　studied.　The　results　show　that　the　multi-row　pile　barriers　can　effectively　isolate　the　vibration.　The　main　factors　influencing　the　isolation　effect　are　the　pile　diameter,　the　number　of　rows　of　piles　and　the　vibration　wave　frequency.