The invention relates to a medical limb rehabilitation training bed, and belongs to the field of medical equipment. The medical limb rehabilitation training bed comprises a bed body, bed legs, connecting blocks, upper limb training devices, weight discs, hand clamps, U-shaped columns and lower limb training devices; the bed legs are arranged at the four corners of the lower side of the bed body, the connecting blocks are arranged on the outer sides of the two corners of a head part of the bed body, the upper limb training devices are arranged on the upper sides of the connecting blocks, and the weight discs are arranged under the connecting blocks; the hand clamps are fixedly connected to the two sides of a foot part of the bed body, and the U-shaped columns are fixedly connected to the upper sides of the hand clamps; the lower limb training devices are arranged on the inner sides of the U-shaped columns. The upper limb training devices are arranged on the head part of the bed body, and the lower limb training devices are arranged on the foot part so that a patient can perform necessary recovery training on a sickbed, the two parts are convenient to assemble and disassemble, and the universality requirement of training is met; the limbs of the patient can be safely and effectively trained, the strength is moderate, and safe use and slow recovery of the patient are guaranteed.