Abstract: A survey involving type-tests, the use of questionnaires and personal communication during field trips was carried out in Niger State. It was aimed at the performance evaluation of locally manufactured rice threshers in use in Niger State. Details of the performance evaluation and summary report are presented. The performance indices evaluated include threshing intensity, capacity utilization, power requirement, threshing efficiency, cleaning efficiency, grain recovery range, percent total losses, number of adjustments and portability. The threshing intensity, capacity utilization, power requirement, threshing efficiency, cleaning efficiency, grain recovery range and percent total losses are 0.0098 kw kg^-1, 65.7%, 7.5 kW, 95, 92.43, 81.1 and 18.9%, respectively for FATE-RF-450 threshers. They are 0.0103 kw kg^-1, 74.5%, 9 kw, 96, 93.45, 84.1 and 15.9% in that order for FATE-5TS-50J threshers.