The meta-material having a negative Poisson's ratio structure according to an embodiment of the present invention includes a plurality of first disconnection fixing bars that are uniformly arranged in a horizontal direction and parallel to the second disconnection fixing bars, and the plurality of A plurality of second disconnection fixing bars arranged to be staggered with the first disconnection fixing bars, and a plurality of flexible bars connecting the vertices of the first disconnection fixing bar and the second disconnection fixing bar, and the plurality of first The disconnection fixing bar, the second plurality of second disconnection fixing bars, and the plurality of flexible bars are interconnected to have a bow tie-shaped negative Poisson's ratio structure, and the flexible bar from the connection point between the disconnection fixing bars and the flexible bar The optimum shape of the obtained flexible bar can be obtained by obtaining the optimum value of the thickness and the vertical distance to a point of.
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