The ion source is the key of the intense proton accelerator.It had been studied in deeply and used widely in the foreign country.We have done some work about the R&D about the ion source.We first research the principle,composition and design parameters of the proton source and the negative hydrogen ion source.The key technology is to obtain the high efficiency and high stable.The emittance of the ion source should be The ion source is the key of the intense proton accelerator. It had been studied in deeply and used widely in the foreign country. We have done some work about the R & D about the ion source. We first research the principle, composition and design parameters of the proton source and the negative hydrogen ion source. the key technology is to obtain the high efficiency and high stable. emittance of the ion source should be