Training is an essential aspect of manpower development that is critical for ensuring sustainable impact of agribusiness productivity. Training is one of the management principles that assist in maintaining the level of productivity of an organization. This research study was embarked upon purposefully to examine the impact that sustainable training has on Agribusiness productivity.  The article revealed some of the factors that necessitated the need for training and the problems militating against sustainable training to achieve greater agribusiness productivity. The research findings showed that the training of agribusiness actors has significant influence on agribusiness productivity. The result indicated that sustainable training of agribusiness actors has greater impact on agribusiness productivity when compared with the use of other initiative programs needed to boost the level of agribusiness productivity and income generation.  Interventional measures such training on technological advancement and combination of other initiative programs along with training are recommended to boost agribusiness activities to assist productivity. The results of this study may be relevant in developing strategies to improve agribusiness productivity among agribusiness actors in Nigeria and other countries.