This　paper　is　aiming　to　present　the　whole　situation　of　a　three　spans　prestressed　continuous　concrete　rigid　frame　bridge＇s　SHM　(structural　health　monitoring)　system.　Hardware　structure　and　software　exploitation　of　the　system　were　respectively　elaborated　combining　with　the　practical　application　situation,　including　details　of　sensors　layout,　data　acquisition,　storage　and　transform,　the　developing　of　monitoring　and　management　system,　etc.　Emphasis　is　placed　on　data　processing　and　analyzing　which　is　collected　from　the　bridge　in　the　online　continuously,　such　as　modal　identification　of　the　measured　acceleration　responses,　calculation　of　deflection　curves　in　real　time,　observation　of　changing　strains　and　stresses　on　the　measuring　points.　©　(2014)　Trans　Tech　Publications,　Switzerland.