Yield anchor cable is a new member of the prestressed anchor cable family. Its stress characteristic is to allow surrounding rock deformation while keeping the support force constant. When the underground cavern is subjected to dynamic load such as explosion load or earthquake force, the deformation kinetic energy of surrounding rock is used to reduce the peak value of dynamic load impact, and the concept of "flexibility and rigidity" is used to improve the resistance of cavern to dynamic load. It can not only be used in the reinforcement and transformation of national defense engineering, but also widely used in the mining industry affected by mining roadway and cavern support, can also be used for seismic engineering reinforcement. It also has a wide application prospect in the support of large deformation slope and cavern.