The invention belongs to the field of construction machinery, and particularly relates to a mold station transverse-moving trolley set provided with a synchronous control device and an application method of the mold station transverse-moving trolley set. According to the technical scheme, the mold station transverse-moving trolley set provided with the synchronous control device comprises a pair of transverse-moving trolleys, a control system, ground rails and positioning seats. The pair of the transverse-moving trolleys structurally arranged in a mirror symmetric mode are separately mounted on the two ground rails. The positioning seats are mounted in the ground rails. The control system is used for operating the transverse-moving trolleys. According to the mold station transverse-movingtrolley set provided with the synchronous control device and the application method thereof, the trolley bodies are narrow, self-weight is low, the synchronous control device is adopted to smoothly convey a mold station to move transversely between working stations of different rails of a concrete prefabricated component automatic mould station production line.