Multilayer sintered metal mesh is a new type of filter material with high mechanical strength and overall rigid structure, which is made of multilayer woven metal mesh by special lamination pressing and vacuum sintering processes. The mesh of each layer of wire mesh is staggered to form a uniform and ideal filtering structure, which not only overcomes the shortcomings of low strength, poor rigidity and unstable mesh shape of common wire mesh, but also reasonably matches and designs the pore size, permeability and strength characteristics of the material, so that it has excellent filtering accuracy, filtering impedance, mechanical strength and resistance The comprehensive properties of grinding, heat resistance and processability are obviously superior to other types of filter materials such as sintered metal powder, ceramics, fiber, filter cloth, filter paper, etc.