In　the　paper,　the　bridge　and　building　complex　structural　system　is　proposed　as　a　new　seismic　structural　system,　and　a　steel　frame　complex　structural　model　with　the　dissipation　devices　is　designed　for　a　large　scale　shaking　table　dynamic　test.　Based　on　the　new　complex　structural　system　and　dynamic　test　results,　the　computation　model,　design　parameters,　earthquake　response　numerical　analysis　and　the　earthquake　response　decrease　effect　are　mainly　researched　in　our　research.　The　basic　concept　system　of　bridge　and　building　complex　structure　with　energy　dissipation　devices　is　provided　firstly,　and　a　steel　frame　structural　model　weighted　4.5　ton　is　designed.　The　research　results　show　that　the　complex　structure　has　a　good　reduction　vibration　effect;　the　acceleration　response　decreases　nearly　50%　in　horizontal　direction　for　building　part.　Compared　to　the　pure　bridge　structure　system,　the　acceleration　response　in　deck　of　the　bridge　of　the　complex　structure　decreases　9%∼30%,　and　the　displacement　responses　decrease　is　8%　to　30%.　The　dynamic　test　results　showed　the　new　bridge　and　building　complex　structural　system　has　good　reduction　vibration　effect　for　both　parts　of　bridge　and　building.