The invention relates to an attraction material device and a manufacturing method thereof. The manufacturing method comprises the following steps of: blending glue solution; gluing; selecting; overlapping; pressing; disassembling; shearing a plate; holing; embedding; overlapping; pressing; disassembling; grinding; forming; and magnetizing. The attraction material device comprises an attracting part and a closing part, wherein the attracting part consists of a substrate and magnets embedded in the substrate; the magnets are parallelly distributed in a plurality of rows in the substrate; and the closing part consists of a substrate and iron sheets embedded in the substrate. By the manufacturing method for the attraction material device, the production efficiency is high, equipment investment is low and the occupied area is small; and the manufactured attraction material device has a mild color of faint yellow, good UV resistance, chemical resistance and bending strength, good flatness without concave-convex feel, good cohesive property and large attraction force.