Aiming at the transverse movement of the wheel disk braking device for gaugechangeable bogie, three kinds of follower mechanism with different control methods are designed. The transverse sliding and locking functions could be reliably realized in the case of ensuring matching with the existing braking device interface. Then, the stress state of the follower mechanism was calculated and analyzed, the advantages and disadvantages of the three schemes were compared and analyzed. Through comprehensive consideration, the hydraulic semiactive follower mechanism has better practical value in engineering.