Agriculture is the backbone of Indian economy and weed removal is one of the major activities in agriculture. Weed control is the one of the most important problem that will reduce the farmer interest to continue cultivation. The farmer acute labor shortage, decreasing income per acre of cultivation, and economic frustration are some of the key factors hurting a farmer's confidence in continuing farming. Hence mechanical weeder is necessary to reduce the labor force. Environmental degradation and pollution caused by chemical is reduced by the use of Mechanical weeder. We have developed mechanical power weeder. The design and manufacturing process of mechanical power weeder is explained in this paper.