The invention relates to a method for making a scaled composite material wing model and belongs to the field of composite material structure and airplane wind tunnel aeroelastic test model making technologies. According to the method, according to the design size, the scaled coefficient and composite material performance parameters of an actual airplane, a mold similar to the geometric profile of the model is made, and appropriate material parameters and processing technology parameters are chosen; in the process of making the scaled composite material wing model of the airplane, a wing spar and a wing rib are made, then the wing spar and the wing rib are combined and connected to be a skeleton, the skeleton is connected with a metal root rib, and then after the skeleton is filled with foams, shape modification is performed; the mold is used for forming the skeleton filled with the foams after the shape modification, and an upper skin and a lower skin are formed. The method enables the scaled composite material wing model to obtain high rigidity and strength with light weight. Moreover, according to different requirements, anti-bending and torsion resistant rigidity of the scaled composite material wing model can be adjusted.