This paper reviews the research progress made in China regarding the microstructures of the beetle forewings,their modeling,and its mechanical properties.We focus on 1)the forewing microstructures can be classified into six phases,the first three of which are characterized by sandwich,multilayer and fiber layer structures,respectively.2)The forewing colors are derived from three features: regulation of the structural parameters of the internal optical structures,scattering on the three-dimensional surface of the bowl-shaped structure and reversible color changes due to changes in the physical microstructure of fluffs.