This study aimed at assessing the role of Agricultural extension services in improving the standard of living of tomato farmers in kebbi State, Nigeria. A multi-stage sampling procedure was employed for this study. Firstly, a purposive sampling was used to select three local government areas (LGA) out of each three senatorial zones and three villages from each LGAs while random and purposive sampling were used to select 206 participants and 206 non-participants, making a total sample size of 412 farmers in Kebbi State. Questionnaire and interview schedule were used for data collection and analyzed with descriptive statistics and inferential statistics such as chow test model. The result revealed that 90% of respondents were the participants and 77% were the male non-participants respectively while the females were 10% and 23% participants and the non-participants respectively. Chow test model analysis indicated a positive mean on output F = 149.87), income, (F=3.95) and level of living (F=24.24) of the participating’ farmers than the non-participating farmers. The output, income and level of living difference were significant at 5% level of probability which means a significant difference in output, income level of living of farmers participating in tomato production. It was concluded that agricultural extension services had positive impact on improving the living standard of tomato farmers in the study area. The study therefore recommends that sustainability of agricultural extension services should be ensured in order to consolidate the achievement of the participating farmers in tomato production.