应用蒙特卡罗模拟方法，对二维XY模型的aging现象展开数值研究。系统从完全有序相淬火到临界温度Tc附近时，通过测量双时自关联函数A(t,t’)，不仅证实了二维XY模型确实存在aging现象，更重要的是与以往文献相比，得到了A(t,t’)更为可信的动力学标度形式。

With Monte Carlo simulation method, the aging phenomenon of the two-dimensional XY model is numerically studied. Starting from an ordered state, the system is suddenly quenched to critical temperature Tc. By measuring the two-time autocorrelation function A(t,t’) we confirm the aging phenomena. Especially, the form of dynamic scaling of A(t,t’) is more creditable than ancient literatures.