▎ 摘　　要

NOVELTY - The utility model claims a porous graphene yarn, comprising a wire core orderly set from inside to outside; an elastic fibre layer and a ventilating layer; the wire core comprises a base line; the base line is provided with multiple shape memory yarn; the multi-strand shape memory yarn is S-shaped interwoven winding; between the base line and the shape memory yarn is further mixed with a water-soluble fibre; the shape memory yarn is further covered with a shaping layer. The beneficial effects of the present application are as follows: By doping water-soluble fibre in the yarn core and the multi-layer fibre layer wound on the outer side of the wire core, when the yarn is over hot water, the water-soluble fibre is dissolved and the hot water is separated from the yarn main body; the yarn main body will form a plurality of small holes; it not only improves the softness, and the heat preservation effect is obviously improved.