Tibia osteotomy positioning system as well as ankle mortice working platform and bone cutting plate working platform thereof

The utility model discloses a tibia osteotomy positioning system as well as an ankle mortice working platform and a bone cutting plate working platform thereof. The bone cutting plate working platform comprises a bone cutting working platform, a bone cutting plate forming an adjustable angle with the bone cutting working platform, and a laser device arranged on the lower surface of the bone cutting working platform, wherein the laser device is a laser transmitter or a laser rangefinder. By utilizing the principle of laser collimation and dispersion prism to determine the retroverted angle of the working planes of the bone cutting plate and an ankle holding device, the tibia osteotomy positioning system as well as the ankle mortice working platform and the bone cutting plate working platform thereof increases the alignment accuracy, simplifies the operation, improves the efficiency of an operation, and reduces the burden of doctors and patients.