摘要
本文给出了实三次域K的一组整基，讨论了域K中的单位，并给出了基本单位的特征及其与某个重要丢番图方程的密切关系．
In this paper is given an integral basis of the cubic field Q,discussed its unit in K field,and are also given some features of the basic unit and the close relations between them and an important di ophantine equation.
