This article is devoted to the analysis of development systems for the Kochbulak gold deposit. A detailed review of losses and dilution for the applied systems of underground field development is considered. The analysis of the applied development systems is carried out. As a result, an integrated approach to the development of the Kochbulak deposit reserves was determined, development systems for various mining and geological conditions were substantiated, and a rational procedure for mining the ore bodies of the deposit was determined

Keywords : Gold Ore Deposit, Ore Body, Opening, Preparation, Ventilation, Development System, Stope Excavation.