The complementary effect is much more notable than the substitution effect between FDI and trade.There exists stupendously consistency between FDI and trade in all the provinces.

• 文章得到以下结果：中国对外贸易与FDI之间的互补作用远大于替代作用，各省市FDI与贸易之间的关系存在著惊人的一致性；