The utility model discloses a wind wave resistant net cage, including the string bag and flotation tank, four sides of flotation tank are fixed with a guide rail, each respectively the end of guide rail is equipped with limiting plate, each the cover is equipped with spring and sleeve on the guide rail, the both ends of spring are connected with sleeve and flotation tank respectively, adjacent twoarticulated between the sleeve have the connecting rod in order to form a quadrangle, string bag system knot is on the connecting rod, the foam has all been filled to the inside of flotation tank andconnecting rod. The utility model discloses a resistance wind -wave capability is strong, and the structure is reliable, can receive stormy waves automatic deformation of when invasion and attack, turns into the kinetic energy of stormy waves the elastic potential energy of spring to this speed that reduces rivers, thus the influence of water flow change shoal of fish in to the box with a net reduced. Furthermore, the utility model discloses an automatic deformability still reducible stormy waves prolongs the life of fourdrinier wire case to the direct impact of box with a net.