The steel-concrete composite girder is easy to be prefabricated and assembled, and is a kind of bridge adapted for the requirements of industrialized construction. Based on the industrialized construction thinking, the H-steel with the maximum height of 1.1m or so is used. An integral prefabricated continuous erection shaped steel-concrete composite girder is proposed. Taking 5×30 continuous girder as an example, the design concept, structural construction and construction steps are introduced. The mechanical performances of structure are calculated, analyzed and studied including the bearing capacity, integral stability and rigidity of structure, and the lateral stress of bridge deck and the crack width of hogging moment area. The shaped steel-concrete composite girder has the strong economic efficiency and competitive power because of its high factory manufacturing efficiency, fast field construction speed and good stress performance. By taking the proper structural measures, its span can be further extended on the basis of 30 m.