Provided is an artificial knee joint implant with which the balance between ligaments can be properly adjusted. An artificial knee joint implant includes a plurality of types of tibial plates 5, 6, and 7 having tibia-side sliding faces 53, 54, 63, 64, 73, and 74 that slide against femoral components 2, 3, and 4, and respectively having at least either the tibia-side sliding faces 53, 54, 63, 64, 73, and 74 at different positions with respect to a tibia in a state where the tibial plates are fixed to a tibial tray attached to a tibia, or the tibia-side sliding faces 53, 54, 63, 64, 73, and 74 in different shapes.
