The invention discloses an optical fiber coiling device of a laser in the technical field of coiling devices. The optical fiber coiling device comprises a U-shaped steel section, a mandrel, a sleeve,a storage disc, a micro generator, a reduction gear pair, a supporting plate provided with a rotation stop block on the side surface, a storage battery, a transformer and a power output interface, wherein he mandrel and the sleeve are rotationally connected to the U-shaped steel section through a bearing in a penetrating manner, one end of the mandrel is rotationally inserted into one end of the sleeve through the bearing, and the outer wall of the mandrel is rotationally sleeved with the storage disc through a bearing; the micro generator, the reduction gear pair, the supporting plate, the storage battery, the transformer and the power output interface are fixed on the front surface of the U-shaped steel section; through limiting by a limit bolt, the mandrel rotates along with the sleeveand then the storage disc rotates. According to the device, a motor is not needed for driving storage, the reduction gear pair is used for drive, so that speed is reduced, torque is increased, operation is effort-saving, and the device has a power generation function and is energy-saving and environmentally friendly.