The lithium target facility design has been developed in the Conceptual Design Activities for the International Fusion Materials Irradiation Facility (IFMIF). As for the lithium target design, the replaceable backwall concept is selected as a reference design with the cell environment of 10{sup -1}Pa, and the free jet and Fusion Materials Irradiation Test Facility (FMIT) type design are carried as the option. In the lithium loop design the single loop is layed out to provide the lithium flow to the two targets with redundant components including tanks, heat exchangers, lithium purification systems, and lithium monitoring systems for high availability. Total lithium flow capability of 120 liter/s is provided by single electromagnetic pump, and the total lithium inventory is 22,300 liters. 9 refs., 5 figs., 2 tabs.