The utility model relates to a 180-degree water distributor which comprises a valve core casing, a valve core rod and a base. The valve core rod is located in the valve core casing, the base is located below the valve core casing, the valve core casing is provided with a cylindrical inner wall, a water inlet is arranged on the left side of the cylindrical inner wall, a C-shaped second water outlet is arranged below the left of the base, a right side wall of the base is provided with a first water outlet, and a base seal ring is arranged below the base. The 180-degree water distributor has the advantages that the valve core rod is located in the valve core casing; when the valve core rod rotates through 180 degrees anticlockwise, an upper ceramic piece is driven to rotate, and water flows out of the first water outlet; when the valve core rod rotates through 180 degrees clockwise, the upper ceramic piece is driven to rotate, and the water flows out of the C-shaped second water outlet, the water outlet is designed into a C shape by adopting a PPO injection molding process, and flow meets the national standard requirements.