Handle transmission device

The utility model relates to a handle transmission device which comprises a handle, a lock cylinder and a driving shaft. The lock cylinder and the driving shaft are embedded into the handle. A spring bolt is fixed to the lock cylinder through a clamp spring and movably meshed with one end of the driving shaft, the handle, the lock cylinder and the driving shaft are coaxially arranged, and a smooth slope is arranged at the end, movably meshed with the spring bolt, of the driving shaft. When the lock cylinder is unlocked, the spring bolt rotates along the slope, and the driving shaft is pushed to move forwards under the effect of the slope. The handle comprises a handle body. The handle body comprises a handle shell, a handle slip cover, a front sliding way plate and a rear sliding way plate. By means of the handle transmission device, installation space can be greatly saved, and the good anti-theft function can be achieved; when the handle transmission device is applied to a door lock and particularly applied to an electronic door lock, the use performance of the door lock can be greatly improved, and the application range of the door lock can be greatly expanded.