The invention discloses a proportioning device and a proportioning system for water and antifreezing solution. The proportioning device for water and antifreezing solution comprises an antifreezing solution tank for storing the antifreezing solution, a mixed solution tank in which a stirrer communicated with the antifreezing solution tank through an antifreezing solution pipe is arranged, a conveying pump which is arranged in the antifreezing solution tank and is used for extracting the antifreezing solution from the antifreezing solution tank into the mixed solution tank, a water pipe for conveying water into the mixed solution tank, a mixed solution pipe for outputting a mixed solution in the mixed solution tank, and a mobile trolley, wherein the antifreezing solution tank and the mixed solution tank are arranged on a trolley plate of the mobile trolley. According to the proportioning device disclosed by the invention, by the arrangement of the mobile trolley, the antifreezing solution tank and the mixed solution tank are arranged on the trolley plate of the mobile trolley, so that moving of the proportioning device for water and antifreezing solution is effectively facilitated, and the use convenience is improved. The proportioning system disclosed by the invention comprises the proportioning device for water and antifreezing solution.