Contribution of Indonesian Vegetable Research Institute (IVEGRI) as an institution who produces new technologies, including new varieties, on the improvement of farmers' income has not been got completed information yet. The objectives of the research were to figure out the level of adoption and contribution of Bima Brebes shallot variety from IVEGRI in increasing adopter farmers' profit, as well as to figure out the return on investment (ROI) of research and dissemination of Bima Brebes shallot. This expost evaluation research was conducted in June–December 2014 in Wanasari Village, Tanjung, Kemukten, and Limbangan, Brebes District. The location was chosen purposively because in the area there were a quite lot of farmers who adopted Bima Brebes shallot variety. Data were collected through Focus Group Discussion (FGD) and an individual interview used structured questionnaire. The respondents consisted of 16 Bima Brebes adopter shallot farmers and 21 nonadopters shallot farmers who planting Bima Curut variety. Data were analysed using descriptive statistic with time line picture. The result of study showed that the technology of Bima Brebes variety from IVEGRI has been disseminated since 1985 in Brebes District and currently, it has been adopting quiet large as well. The spreading adoption is about 16,522 ha. In 2013, the adoption of Bima Brebes in Brebes District could increase adopters' profit as much as 345.050 billions rupiah with ROI of research and dissemination of the variety was 71,125%.