By experiments of emulsification stability and observation of microscope photographs,effects of two kinds of emulsifier polyvinylpyrrolidone and lecithin on dispersion of wax in composition B were studied. It is concluded that polyvinylpyrrolidone can decrease surface tension of wax effectively and disperse wax in melting composition B in small wax drop,but make color of the system darken. While adding lecithin in the system,change of the color isn′t obvious,but stability time of the system is shorter. However,the mixture composed of lecithin and NC is a good complex emulsifier for dispersing wax in composition B and doesn′t result in color change of the system. The differences between microstructures without emulsifier,with single emulsifier and with complex emulsifier are given in this paper.