Particle classification particle detector for plots for

The present invention discloses a method for classification of particles in the particle detectors for the scatter plot, comprising the steps of: A, converted into a scattergram topographic map, a contour plot output; B, in a first step from the interlayer top maximum gray value pixels where each layer start searching contour map; C, i-th layer is determined contour plot of a closed contour line is categorized by preset rules and the i + a layer of contour plots generated between the pixel contact point P of the category, and if so, put the i-th layer contour plot of the closed contour line projected on the scattergram surrounded pixel included in the category P otherwise, the new vertex numbers will not be attributed to any known class of a new category, where i is a natural number; D, layer by layer collation determines whether termination conditions are satisfied until the first layer when the contour line in FIG. The present invention can improve the accuracy of particle classification scatter plot.