Abstract: This study manages the plan and investigation of screw compressor. The twin-screw compressor is a positive relocation machine utilized for packing air to direct weights. It includes a couple of intermeshing rotors with helical furrows machined on them, contained in a packaging which fits nearly around them. The rotors and packaging are isolated by little clearances. The quick acknowledgment of sink compressors different ventures in the course of recent years is because of their generally high rotational rates contrasted with different sorts of positive uprooting machines which make them conservative, their capacity to keep up high efficiencies over an extensive variety of working weights and stream rates and their long administration life and high unwavering quality. Each time era of various profiles and assesses execution of those profiles by tests is exceptionally troublesome and these are costly and time taking procedure. By utilizing CFD can discover execution of various profiles less demanding. A reasonable strategy for advancement of the screw compressor shape, size, and measurement is depicted here which brings about the most suitable outline. Compressors in this way composed accomplish higher conveyance rates and preferred efficiencies over those utilizing customary methodologies.