Through comparing every kind of LCU, this paper introduced the structure,principle and technological feathers of SJ 600 type LCU. At last,it made a comprehensive accessment on its operation condition.

• 通过对各类LCU的比较 ,着重介绍了SJ 6 0 0型LCU的结构、原理和技术特点 ,并就其运行情况进行了综合评价