The present invention relates to an assembled concrete truss building structure reinforcement equipment, which comprises a side support plate, a positioning plate, a top extension support plate, a splicing plate and a positioning mechanism. The number of said side support plates is two, and the number of each side support plate is There is a positioning plate vertically distributed at the front, rear and both ends of the inner side. The upper end of the positioning plate is connected to the side of the side support plate. The inner end of each positioning plate is distributed with a top extension support plate. A splicing plate is connected between the support plates, and a positioning mechanism is installed on the inner surface of the upper end of each side support plate. The present invention can solve the problems existing in the construction of the existing concrete frame: when the concrete frame is erected, the truss cannot be used as the reference for positioning and setting, resulting in a deviation of the truss support platform relative to the truss, resulting in poor construction effect of the support platform, and the lower end of the concrete truss. When pouring concrete, there is likely to be a gap between the upper end of the truss and the main structure of the building, resulting in poor support effect of the truss.