In Thailand, poultry sector is the main economic gr owth of livestock sector, especially broiler produc tion. The rapid expansion in broiler production has been made possible by the increase in the number of commercial farms or contract farming. The objective of this research was to understand better how cont ract farming works, who gets involved and why and who benefits from the agreement. The study is based on th e broiler file survey in Chiang Mai province of Thail and. As the results, contract farming looks quite attractive for farmers as well as for private compa nies but most of the farmers complained about long waiting until the delivery of the next cycle of chi cks have started.