The invention relates to the technical field of rehabilitation training, and provides a limb joint rehabilitation training device. The limb joint rehabilitation training device aims at the solving thetechnical problem that existing limb joint rehabilitation training devices have a small application range. A power source is connected with a base, a first transmission mechanism is connected betweenthe power source and a first rotating shaft or between the power source and a second rotating shaft to convert power of the power source into the rotation of the first rotating shaft or the second rotating shaft, a first clutch is connected with the first rotating shaft and the second rotating shaft, and a second clutch is connected with the inner side end of a fourth rotating shaft and the innerside end of a third rotating shaft so that the first rotating shaft and the second rotating shaft can switch between a separated state and a jointed state and the third rotating shaft and the fourthrotating shaft can switch between a separated state and a jointed state; a second transmission mechanism transmits the rotation of the first rotating shaft to the fourth rotating shaft, a first limb operating piece is connected with the outer side end of the fourth rotating shaft, a third transmission mechanism transmits the rotation of the second rotating shaft to the fourth rotating shaft, and asecond limb operating piece is connected with the outer side end of the fourth rotating shaft.