In recent years, construction waste of recycled concrete, brick and mortar has been widely used in the roadbed construction in our country. The bearing capacity and stability of the subgrade mainly depend on the shear strength of the subgrade filler, and the construction waste filler particles have the characteristics of wide grading range, low strength, complex composition, etc., and the shear characteristics under the service load are significantly different from that of the traditional sand and gravel filler. The existing research results are reviewed from three aspects: shear characteristics of construction waste recycled fillers, shear characteristics of construction waste - fine grained soil mixed fillers, and interface shear characteristics of construction waste recycled fillers and geomaterials. Based on the existing studies, it is found that the mechanism of the effect of particle breakage on the shear characteristics of construction waste is still to be perfected. Lack of comparative analysis of the difference in performance improvement of construction waste mixed with different fine soil; It is necessary to deeply explore the soil-reinforcement interface shear mechanism of construction waste, so as to provides important theoretical support and technical reserve for the development of green and low-carbon transportation in China.