Provided is a rehabilitation training apparatus for an ankle joint, which includes a working platform, a Z-axis rotating mechanism erected on the working platform and rotating around a Z axis of the working platform, a Y-axis rotating mechanism connected with the Z-axis rotating mechanism and rotating around a Y axis of the working platform, an X-axis rotating mechanism connected with the Y-axis rotating mechanism and rotating around an X axis of the working platform, and a pedal arranged on a lower end of the X-axis rotating mechanism and parallel to a desktop of the working platform. The Y-axis rotating mechanism includes an annular bracket vertically fastened to a driving arm of the Z-axis rotating mechanism, an annular sliding cover slidably disposed on one side wall of the annular bracket, a Y-axis driving mechanism for driving the annular sliding cover to rotate around the axis of the annular bracket, and a sliding block for locating the annular sliding cover. The Y-axis driving mechanism synchronously rotates with the annular sliding cover and the X-axis rotating mechanism is fastened to one side of the annular sliding cover.
