The invention discloses a low-voltage pre-branching cable paying-off support, and belongs to the technical field of cable supports. The low-voltage pre-branching cable paying-off support comprises a floor support, wherein steering wheels are arranged on the lower portion of the floor support, a fixed stand shaft is arranged on the floor support, a bearing is arranged on the stand shaft, a rotating tray is arranged on the stand shaft, and the rotating tray is connected with the stand shaft through the bearing. A stand cylinder is fixed to the rotating tray and arranged on the stand shaft in a sleeved mode. The floor support is a triangular support. The steering wheels are arranged on the lower portion of the floor support, a cable can be wound on a vertical small cable disc on the floor support, the floor support can be pushed on the ground so that the cable can be moved to a construction position, and therefore construction is convenient, convenience is brought to cable laying in narrow space, work efficiency is improved, construction safety is ensured, labor intensity is lowered, and construction cost is reduced.