The invention discloses a plate-type ballast bed turnover device comprising a longitudinal moving mechanism, a horizontal moving mechanism, a vertical lifting mechanism, a turnover mechanism and a special fixture, wherein the longitudinal moving mechanism is connected with the horizontal moving mechanism through a slideway and a sliding chute; the horizontal moving mechanism is connected with the vertical lifting mechanism through a slideway and a sliding chute; the turnover mechanism is connected with the vertical lifting mechanism; the special fixture is fixedly arranged at one end of the turnover mechanism; the whole device is arranged on a main girder structure of hoisting equipment; and therefore, the requirement for equipment position control when the device carries out clamping operation on a plate-type ballast bed is met, the efficiency is increased, and meanwhile the precision is higher. Due to the adoption of a design structure that various regulating mechanisms are used simultaneously, the spatial omnibearing regulation is realized, the plate mounting and dismounting requirements can be better controlled, requirements for conditions of operation fields can be reduced, the working safety is greatly improved, the working efficiency is greatly increased, and the construction cost is reduced.