development of a country, especially developing countries like Nigeria. However, crop sub-sector has been adversely affected by the conflicts stemmed up between crop farmers and herdsmen that further led to unrest in the local communities. This study therefore assessed the productivity of cassava- based farmers having herders conflicts in Ogbomoso Agricultural zone (ADP), Oyo State, Nigeria. Multi-stage sampling technique was used to select 252 farmers in the study area due to the high incidence of herders’ conflict with farmers. Primary data were collected with a structured questionnaire. Descriptive statistics was used to analyse the demographic characteristics of crop farmers and distribution of respondents by factors of production. Also, the productivity level of cassava-based farmers was determined by Total Factor Productivity (TFP) and its determinants were examined by exponential regression. The results showed that majority of the respondents (88.5%) were male. Analysis of TFP showed that a mean productivity level of 5.21 was achieved by the cassava-based farmers. The exponential regression result revealed that household size (p<0.01), adoption of soil conservation (p<0.01), use of tractor (p<0.01) as well as improved cassava stem cuttings (p<0.01) had positive influence on the productivity level of cassava-based farmers while agricultural land use index (p<0.1) had negative influence on their productivity. This study therefore concluded that productivity levels among cassava-based farmers hinged on certain factors such as household size, soil conservation, tractor input, improved cassava varieties and agricultural land use index. The study recommends that the cassava crop productivity among farmers should be improved by the adoption of soil conservation, use of tractor, as well as improved cassava stem cuttings while ensuring large tract of agricultural land use index.