The invention relates to a metamaterial antenna housing which comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a second substrate which are oppositely arranged, wherein at least one artificial micro structure is attached on the surface of the first substrate, which faces towards the second substrate, the artificial micro structure comprises four branches sharing an intersection joint, one end of any one branch is connected with the intersection joint, the other end of the branch is a free end, the branch comprises at least one bending part, and any branch sequentially clockwise rotates for 90 DEG, 180 DEG and 270 DEG with the joint as a rotating center and respectively coincides with other three branches. Through attaching the artificial micro structure with a special shape on the substrate, needed electromagnetic response is obtained, so that wave transparent performance of the metamaterial antenna housing is enhanced, and antijamming capability is increased.