The utility model discloses a cement anti-blocking device of a mixing station. The cement anti-blocking device comprises a discharging tube and further comprises a vibrator, wherein the discharging tube is flexibly connected with a mixing machine of the mixing station and a material measuring and conveying system, the vibrator is arranged on the outer tube wall of the discharging tube and can drive the discharging tube to vibrate. According to the cement anti-blocking device of the mixing station, disclosed by the utility model, the vibrator is arranged on the outer tube wall of the discharging tube so as to be capable of timely or untimely driving the discharging tube to vibrate, and cement slurry attached on the inner wall of the discharging tube can fall down due to vibration at any time so that the blockage of the discharge tube is effectively prevented. The cement anti-blocking device of the mixing station, disclosed by the utility model, has a simple structure, is convenient to use and is suitable for preventing cement from blocking the cement mixing station and a mine filling station.