The utility model discloses an ingot roof beam combination support assembly, including the sectional shelf -unit body, the sectional shelf -unit body includes that the platform is connected to support mounting hole, ingot roof beam and the mounting hole is sold to the leaf spring, isosceles trapezoid connects, is to the support mounting hole site in the upper portion of sectional shelf -unit body, four support mounting holes through the gusset, the lower part that platform, central facade and cavity are located the sectional shelf -unit body is connected to the ingot roof beam, the cavity comprises two circular arc connection faces, is equipped with endocentric leaf spring round pin mounting hole on the wall of the both sides of cavity, and the cavity is connected with central facade, the bottom both sides of center facade are equipped with the ingot roof beam and connect the platform, connect the bench at the ingot roof beam and are equipped with the connecting hole. The utility model discloses having reduced spare part quantity, having made suspension system arrange the compactness, the meter is reseted through subtracting to the sectional shelf -unit body, effectively reduces the support quality, reaches light -weighted purpose. The utility model has the characteristics of simple to operate, rational in infrastructure, the quality is light, longe -lived.