With the rapid developments of laser and optical fiber communication techniques
improving the electro-optical properties of nonlinear optical poled polymers was seriously demanded.This could be realized by researches and optimizations in the aspects of molecular design and poling method.In this paper
we summarized the more recent development of synthesis
structures and properties of nonlinear optical polymers with the clue of the main-chain structure and the gist of nonlinear optical properties of the polymers as well as prospected their future application in optic communication.