Multi-layer sintered metal mesh is a new type of filter material with high mechanical strength and overall rigid structure, which is made of multi-layer metal woven wire mesh and manufactured by special lamination pressing and vacuum sintering.Its each layer screen mesh crisscross each other, forming a homogenous and ideal filter structure, not only overcome the common low strength, poor rigidity metal screen, mesh shape is not stable, but also on the material of the pore size, permeability and strength characteristics to design reasonable matching and making it has excellent filtration precision, filtration resistance, mechanical strength, wear resistance, heat resistance and processability, comprehensive performance is better than sintered metal powders, ceramics, fibers, filter cloth, filter paper and other types of filtering material.