The approximate solution for a class of disturbed mKdV coupled system is considered using a simple and valid technique.We first solve the approximate solution of the soliton for a corresponding complex-valued differential equation using the homotopic mapping method.And then the approximate solution of the soliton for a original disturbed mKdV coupled system is obtained.%采用了一个简单而有效的技巧,研究了一类扰动mKdV耦合系统.首先利用同伦映射方法求解一个相应的复值函数微分方程孤子的近似解.然后得到了原扰动mKdV耦合系统孤子的近似解.
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