Abstract: The most serious problem in magnet design is the strong magnetic stress.In 100T magnets the stress is 4GPa,which exceeds the strength of the strongest conductor materials now available,so the development of pulsed magnet depends to a great extent on the solution of this problem.We describe various methods used abroad to solve this issue,including new materials development,coil reinforcement and improved current distribution technology.Finally,the merits,shortcomings and performance of the new methods are presented.