中文摘要：

概述了非线性光学材料的光学效应，然后根据化学性质的不同，将非线性光学材料分类为无机、有机（有机低分子、有机高分子、金属有机）和无机／有机复合非线性光学材料。针对不同的材料进行简单综述，最后介绍了两种常用表征光学材料非线性性能的方法。

英文摘要：

This paper summarizes the optical effect of the nonlinear optical materials, then according to materials＇ different chemical property, we classify materialsto five types： inorganic nonlinear optical materials, organic nonlinear optical materials （low molecular organic nonlinear optical materials, nonlinear optical polymer materials, metal organic nonlinear optical materials） and inorganic/organic composite nonlinear optical materials. Sum up the feature base on different optical materials,at last,paper introduces two common characterization methods of nonlinear optical materials.