采用分子动力学方法和Ｍｏｒｓｅ相互作用势研究金属团簇Ｃｕｎ的结构和性质，给出不同尺寸团簇的基态结构．当团簇缓慢加热时，具有不同结构和对称性的团簇呈现不同的蒸发过程。从径向分布函数计算出平均最近邻距离随着团簇尺寸的增加而减少． The structure and properties of metal cluster Cun were studied by molecular dynamics and Morse interaction potential, and the ground state structures of different size clusters were given. When the clusters are heated slowly, the clusters with different structures and symmetries show different evaporation processes. From the radial distribution function, the average nearest neighbor distance decreases as the size of the cluster increases.