The invention relates to a perpetration method of a particle-reinforced light microarray composite material. A light microarray material (with the density rho being smaller than or equal to 1000mg/cm<3>) has the characteristics of being low in weight and high in mechanical strength. Due to the properties of sound absorption, heat absorption, damping and the like, the light microarray material can be greatly used in the fields of aviation, aerospace, buildings and the like. The preparation method includes the two steps that (1) a fast forming technology is adopted for preparing a three-dimensional microarray polymer template of a designed structure; and (2) a chemical composite plating method is adopted for depositing a compound thin film on the surface of the microarray polymer template. The microarray composite material prepared through the method has the properties such as low density, high strength, high-temperature resistance, excellent light, electricity, heat and abrasion resistance, thereby being a multifunctional light lattice material. The work is expected to provide a valuable reference for light high-strength engineering materials.