Abstract: The reasonable formula and application of a new type of binder for forming cemented carbide with SBS as main composition have been studied. Experiments have shown that binder solvent manufactured by solving a given proportion of both SBS and some of medium into suitable solvent used as forming agents for the production of cemented carbide has the features of low ash contents, high sticking strength, etc. making the additives mixed good granularity and high strength compact. Technological experiments have shown that the binder is basically of the same application technology as that of butyl sodium rubber. Therefore, it is easy to be spread to practical use.