中国科学院近代物理研究所承担的国家“九·五”重大科学工程项目兰州重离子加速器冷却储存环(HIRFL- CSR)目前正处在建设阶段。为减少真空系统中残余气体分子对粒子束造成的损失 ,要求系统平均真空度达到 6× 10 - 9Pa。在研制和建造过程中 ,我们做了大量的工作以获得所要求的真空度。本文将介绍其中样机的研制 ,超高真空实验室的建立和各项实验工作 ,大型真空处理设备的建造 ,真空烘烤系统研制等。同时对目前的工程进展也做了简要介绍 Lanzhou Heavy Ion Accelerator Cooling Storage Ring (HIRFL-CSR) undertaken by the Institute of Modern Physics, Chinese Academy of Sciences, under the “September 5” Major Science Project is currently under construction. In order to reduce the loss of residual gas molecules in the vacuum system to the particle beam, the average vacuum of the system is required to reach 6 × 10 -9 Pa. In the development and construction process, we have done a great deal of work to obtain the required degree of vacuum. This article will introduce one of the prototype development, the establishment of high vacuum laboratory and the experimental work, the construction of large-scale vacuum processing equipment, vacuum baking system development. At the same time on the current progress of the project also made a brief introduction