The utility model discloses a clothes windproof clamp which comprises an upper clamp seat, a lower clamp seat is symmetrically arranged below the upper clamp seat, clamping parts of the upper clamp seat and the lower clamp seat are respectively provided with a clamping plate, and the clamping plates are respectively and fixedly connected with the upper clamp seat and the lower clamp seat. Clamping mechanisms are symmetrically arranged on the clamping plate connected with the upper clamping seat, each clamping mechanism comprises an empty groove formed in the upper clamping seat, a clamping plate is arranged in each empty groove, a connecting rod is installed at the top end of each clamping plate, a protruding plate is fixed to the outer side of each connecting rod, clamping springs are symmetrically installed at the top end of each protruding plate, and a clamping groove is formed in the upper clamping seat. A shell is arranged on the outer side of the clamping spring. According to the clothes peg, the clamping plates are arranged and fixed to the upper clamping base and the lower clamping base respectively, the upper clamping base and the lower clamping base drive the clamping plates to clamp clothes in the using process, the clamping plates make contact with the clothes for clamping, the clamping area can be increased, the clothes are prevented from being blown off by wind, and the stability of the clothes peg is improved.