中文摘要：

用变分迭代法求解一类分数阶微分方程组，并改进了校正函数。数值结果表明，运用变分迭代法求解分数阶微分方程组的近似解有效且准确。

英文摘要：

The authors described approximate solutions for systems of fractional differential equations by the variational iteration method,and modified the correction function.Numerical results reveal that variational iteration method is very effective and accurate for obtaining approximate solutions of systems of fractional differential equations.