The introduction of efficient weeding aids and equipments for weed control seems highly necessary to minimize time consumption, labour requirement and cost. As a consequence, a prototype power-operated rotary weeder for weeding in wetland rice cultivation was designed, developed and fabricated at the Faculty of Agricultural Engineering workshop, IGAU, Raipur, Madhya Pradesh, India during the year 1999-2000 and tested in the experimental field. A 0.5-hp petrol driven engine was used for power weeder with a reduction gearbox. The power transmission from engine to traction wheel and to the cutting unit was provided by means of a belt, pulley and chain, sprocket. For cutting the 4 L-shaped standard blades were used on the hub, and in turn fitted on rotary shaft. Two big traction wheels were used to make the operation smooth. A gauge wheel was provided for depth adjustment of the cutting unit. With 200-mm spacing, the field capacity of the machine varied between 0.04-0.06 ha/h with field efficiency of 71%. The weeding efficiency of the machine was 90.5%. The machine was simple, easy to fabricate by local artesians.