Studying on spacing scattering phenomena in pulse laser machining is an important method to analyze quality of laser bean absorbed by material and improve machining precision.According to the theory of equation:absorption rate+scatter rate=1,this paper has analyzed the scattering phenomena by experiments,determined ways and collection devices to research it.At the same time,the mathematical models of scattering-energy have been presented and its graphics have been drawn under AUTOCAD by collection system and its soft program.Experimental result shows that the spacing distribution of the scattering-energy is like as segment.