Abstract: The based theory of laser beam's spatial shaping technology, binary optics and typical application are discussed. The mathematics description of laser beam's reflex type renovating exchanging and transmission type renovating exchanging are analyzed concretely. Through the analysis on space field renovating of the laser beam using the method of mumerical value simulation in the paper, the authors also illustrate the present situation of the laser beam's shaping technology and look forward to the development prospect.