The SMEs sectors in Iran play a very vital role in economic development and entrepreneurship growth, because the SMEs sector is totally private. In this paper, we find that the main causes of the weakness and disability of the SMEs sector are based on a lack of entrepreneurship talents and training. We try to find out the role of government-based training institutes and as well as semi-government institutes in entrepreneurship development in the SMEs sector in Iran, especially in recent years (1997-2001). It is recommended that all training activities of government and semi-government training institutions be turned especially toward the needs of the SMEs market and to transfer these training facilities to private sector.