In　this　paper,　the　compositive-skew　box　beam　bridge　with　construction　by　stages　is　brought　out　on　the　basis　of　a　skew　box　bridge　in　Guangdong　Province,　and　both　the　model　experiments　of　the　compositive-skew　box　beam　bridge　with　construction　by　stages　and　the　beam　box　with　integral　construction　are　taken,　with　some　experimental　loading　cases.　With　the　analysis　of　the　obtained　data　by　mathematical　statistics,　different　loaded　property　of　them　is　analyzed,　and　some　conclusions　that　can　be　used　are　drawn.　What　is　more,　the　experimental　load　and　the　design　load　are　compared.　The　research　results　will　promote　the　popularization　and　application　of　the　compositive　box　beam　bridge　with　construction　by　stages　in　the　engineering.