The fundamental functions are reconstructed for the multi-symmetry region in order to enhance the calcu-lating performance. The rebuilt fundamental functions satisfy the boundary conditions on the symmetry axis. With the help of the rebuilt functions, the boundaries can be greatly reduced in calculations. In the numerical examples, it is shown that the nonlinearity of linear equations can be reduced, and the numerical computation will have much higher efficiency.% 基于简化计算过程和提高计算效率的思想，对多对称区域中基本解方法的基本解函数进行了重新构造，重构后的基本解函数满足在对称轴上特定的边界条件。利用重构的基本解函数，可极大减少计算中涉及的边界。通过算例比较可见，在使用对称条件下，计算过程中所需处理的数据比使用原来基本解函数更少，线性方程组的奇异性得到极大的缓解，计算效率也得到很大提升。
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