Abstract: Fully automatic operation technology can effectively improve the operational performance, in terms of efficiency, reliability, safety, feasibility, maintainability of urban rail transit system. The depot is an indispensable composition of urban rail transit. From the perspective of improving the fully automatic operation level of the depot, the automatic sectioning principles of the depot based on fully automatic operation system were analyzed. Focusing on the functional requirements and technical characteristics of biweekly and 3month inspection warehouse in the depot, the advantages and disadvantages of the biweekly and 3month inspection warehouse functioning as automatic operation area and non-automatic operation area were compared, the advice for sectioning and technical requirements of the biweekly and 3month inspection warehouse in the depot based on fully automatic operation system were proposed.