Increasing productivity via continuous use of improved technologies remains a viable strategy to reducing food insecurity and poverty among smallholder farmers. These improved technologies include improved seed varieties, fertilizer, recommended spacing, recommended mixed cropping and pesticides. This study investigated dis-adoption of improved technologies among farmers in cocoa-based farming systems of Southwestern Nigeria. A multistage sampling procedure was used to obtain information from 200 respondents. Data were analyzed using descriptive statistics and probit regression model. Descriptive statistics revealed that 7.5% of the respondents did not adopt any improved technologies. About 51.0%, 35.0%, 36.5%, 69.0%, and 53.5% of the respondents previously adopted improved seed varieties, fertilizer, recommended spacing, recommended mixed cropping, and pesticide respectively. However, about 28.4%, 68.6%, 36.4%, 58.9%, and 29.0% of the respondents discontinued improved seed varieties, fertilizer, pesticide, the recommended spacing, and recommended mixed cropping, respectively. Probit estimates revealed that factors affecting dis-adoption of improved technologies were membership of an association (P<0.01), years of formal education (P<0.05), access to credit (P<0.05), farm size (P<0.01), household size (P<0.01), gender (p<0.1) and contact with extension agent (p<0.01). Increasing the uptake of improved technologies could be achieved through enlightenment programmes by effective and efficient extension services during farmer field days. Also, farmers should be encouraged to form farmers’ organizations in the study area to improve their access to basic resources such as credit.