简要介绍了强流质子加速器的若干个主要应用领域,并比较了目前国内外各类质子加速器的发展状况,列举了有代表性的加速器技术指标.在此基础上,总结强流回旋加速器的技术特点,介绍了中国原子能科学研究院的强流加速器研究与发展的三个主要阶段.最后,重点介绍了我们目前正在研究的一些强流回旋加速器关键技术及研究进展. This paper briefly introduces several main application fields of proton accelerator and compares the development of proton accelerators at home and abroad, and lists some representative accelerator technical indicators.On the basis of this, the paper summarizes the technology of strong current cyclotron Characteristics, and introduces the three main stages of research and development of the strong current accelerator of China Institute of Atomic Energy.Finally, the key technologies and research progress of some strong current cyclotrons that we are currently studying are highlighted.