The X-shaped intersecting ducts have a structual defect in engineering because of extra ducts at both the confluent and branching sides. However, the results are interesting when researchers apply the characteristics of flow around the intersecting region with the use of newly developed apparatuses. In this paper, experiments were performed to investigate the changes of energy, resistance and flow rates in two intersecting vertical ducts. The flow visualization study was conducted using a recirculating flow loop with an intersecting duct installed between two head tanks of different heads. It is disclosed that the changes of energy and hydraulic gradient in the intersecting vertical ducts are as almost same as those in the intersecting plane ducts. The flow rates in the intersecting ducts with the angle of 60° are found to be of great interest, that is, their flow rates at the end of downstream ducts are almost same regardless the water levels in the upper tanks.