Groundnut is grown on small scale farmers in developing countries like india. the average kernel price is approximately twice the price of pod. lack of groundnut processing machines, especially groundnut sheller, is a major problem of groundnut production, especially in our country india. a research-work for design, fabricate, and performance evaluation of a groundnut harvester consisting of feed hopper with a flow rate control device separating unit and power system. the performance of the machine was evaluated in terms of throughout capacity, material efficiency and mechanical damage. this project describes about the design of various components of groundnut harvesting machine. hence in this design of various parts are necessary, and design of various parts due to which the design quality of those parts will be improved. overall, this project involves processes like design, fabrication and assembling of different components etc.