The Bean/Cowpea collaborative research support program (CRSP) was established to address the problems of hunger and malnutrition in Africa and Latin America by increasing smallholder production of beans and cowpeas, major subsistence crops. This was to be accomplished by developing and testing improved technologies and enhancing the abilities of developing country scientists to solve problems related to bean and cowpea production and use. A major accomplishment of the CRSP has been to increase agricultural scientific research and training capacity. The purpose of this paper is to evaluate the training component of the Malawi and Tanzania Bean/Cowpea CRSP's. The evaluation examines the impacts of training on the individual research scientists, on building scientific capacity, on upgrading the bean research programs, and on strengthening institutional linkages, with emphasis on the last two issues.