The sustainability of agricultural extension efforts from a village equity perspective is an issue for future development planning. Data were collected from 48 villages in Fars Province, Iran. Informant villagers were identified and interviewed in each randomly selected village. The findings indicate that the extension organization is concentrating its efforts in villages where farms are larger, the village is more developed and which to some extent are nearer to the RSC. While the concept of sustainable development goes far enough to emphasis between-generation equity, the current state of extension efforts in Fars Province has no aim of decreasing the inequity between villages, but in reality is increasing the gap. Considering the issue of poverty and environmental degradations, it is concluded that agricultural extension efforts in Fars Province is not a sustainable development effort. If extension efforts are to have a more sustainable impact, training the agricultural extension workers about sustainable development is the first step. These educational programs should cover ecological sustainability, social sustainability and the linkage between poverty and environmental degradation.