The article considers analysis of technologies and equipment used for dispersion of micro and nanoparticles. Various methods of preparation of disperse suspensions and colloidal solutions containing nano-particles are described. A summary of the performance of the methods, i.e. the size of the particles after treatment by a method, is presented. Advantages and technological possibilities of methods on specific scientific and applied tasks are considered. Specific attention is paid to the statistical data on the number of methods and their application in research, which is important for the formation of their priority list on the criterion of demand. Separately, the article considers a new method of ultrajet dispersion, which can take its place in the questions of obtaining suspensions and solutions with specified particle sizes. The article is an overview and may potentially be of interest to a wide range of readers addressing the issue of liquids dispersion, as it contains some background data and experience of previously conducted studies.