The invention relates to a training device, in particular to a medical leg rehabilitation training device. The to-be-solved technical problem is to provide a medical leg rehabilitation training devicewith a high safety factor and a significant training result. In order to solve the above technical problem, the provided medical leg rehabilitation training device comprises a mounting plate, a firsthollow rod, a first connecting rod, a height adjusting mechanism, a bearing plate, a first fixing plate, a second fixing plate, a rotating mechanism, a second hollow rod, a first connecting block, athird hollow rod, a U-shaped handrailing, a fixing mechanism, a resetting mechanism and a pedal; the first hollow rod and the second fixing plate are fixedly connected to the top of the mounting platein sequence in the length direction of the mounting plate, and the first connecting rod is slidably connected with the first hollow rod. The medical leg rehabilitation training device achieves the effects of the high safety factor and significant training result.