D. Babenko, N. Dotsenko, O. Gorbenko, N. Kim. Justification of the implementation of a separator of seeds of vegetable and melon crops as part of the technological line A modified design of a seed separator was tested in various technological configurations based on the technological line of separation seeds of vegetable and melon crops: with a serial separator, with an experimental separator, complete with a MOS-300 machine. The comparative characteristics of such indicators as productivity, seed loss, the content of impurities in seeds, injury to seeds are given. The implementation of the melon seeds separation into technological line is substantiated. Keywords: vegetable and melon crops, separator, technological line, seeds separation.