Abstract: The study examined the impact of Tungan-Kawo dam irrigation project on rice production among small holder farmers in Wushishi Local Government Area of Niger State. Multi-stage sampling procedure was used to select 180 registered rice farmers in the study area. Data were obtained through a well structured questionnaire. Descriptive statistics and z-test statistic were employed for data analysis. Results revealed that the average output of participants (3076.67kg/ha) was significantly higher than the output of non-participants (1103.33kg/ha). The estimated average monthly income of participants was N59363.89 while non-participants earned N21322.22 per month. The difference in income was N38041.67 which could be expressed as 64 percent. The results further revealed that participants’ level of living was estimated to be N1760292 while non-participants level of living was N854997.80. The major constraints faced by the participants of Tugan-Kawo irrigation projects were capital, limited irrigated land and problem of pests and diseases. About 93% of the respondents reported outbreak of pests and diseases. Quilea birds invasion was also found among the major constraints faced by the participants. Since the project had a positive and significant influence on rice production, it is recommended that a similar programme should continue to be implemented in the area after the implementation of Tugan-Kawo irrigation project.