The utility model discloses a mud dosing manifold special for an ocean well repairing machine. The manifold comprises a mud tank pipeline, a seawater pipeline, a fresh water pipeline and a diesel pipeline which are arranged vertically. The mud tank pipeline, the seawater pipeline, the fresh water pipeline and the diesel pipeline are all formed by sequentially connecting medium pipe sections through detachable flanges and are provided with a connector tee joint and a connector flange for connecting mud tanks respectively. A through blind sweeping end and a sweeping pipeline are sequentially arranged at one end of the mud tank pipeline and one end of the diesel pipeline, medium connection ends are arranged at the other ends, and discharging pipelines are connected with the middles. A blind flange is arranged at one end of the seawater pipeline and one end of the fresh water pipeline respectively, and medium connection ends are arranged at the other ends. The mud tank pipeline, the seawater pipeline, the fresh water pipeline and the diesel pipeline are fixed through a plurality of n-shaped supports arranged at intervals. The manifold enables the pipelines to be processed integrally, is reasonable in arrangement, neat and attractive in appearance and easy to install, fully utilizes the height space, and reduces device occupation area.