国家自然科学基金重大项目，超灵敏小型回旋加速器质谱计的研制已按预定目标完成，其研究水平居国际领先地位．本文介绍其研制意义和背景，概述设计思想和总体方案，并就其创新学术思想和独特技术路线、以及进一步研究任务，作了扼要介绍． The National Natural Science Foundation of China major project, ultra-sensitive small cyclotron mass spectrometer research and development has been scheduled to achieve the goal, its research level Habitat international leader. This article introduces its research significance and background, summarizes the design ideas and overall programs, and gives a brief introduction of its innovative academic ideas and unique technical routes, as well as further research tasks.