Adoption of full extension package is seen as a key driver to increase agricultural production in Ethiopia. However, there is lack of empirical evidence on the adoption of full extension package on teff by farmers. A study was conducted in Dendi district, Ethiopia. The data for the study were generated by employing both qualitative and quantitative data collection methods. Semi-structured interview schedule was used to collect primary data from the respondents. To generate qualitative data, focus group discussion and key informant interview were employed. Binary logistic model was used to analyze the factors influencing full package adoption on improved teff technology among sampled farmers. The results of binary logit model indicated that educational level, total livestock owned, frequency of training, and knowledge level were found to have positive and significant influence on the adoption of full extension package of improved teff technology while land size, input price and total social participation were found to have negative and significant influence on the same. In conclusion, it is imperative to improve farmers’ access to information and extension advices and credit services to increase the adoption. Moreover, attention has to be given to create suitable and modern teff line sowing equipment. Hence, development interventions should give emphasis on improvement of such factors to increase adoption of full extension package on improved teff technology.