Roadbed prefabricated drainage ditch laying device

The utility model discloses a roadbed prefabricated drainage ditch laying device, which is used for automatically laying a prefabricated drainage ditch in an excavated groove, and is characterized by comprising a head mold of which the outlines of the two sides and the bottom are fitted with the outline of the groove, the limiting mold is connected to one end of the head mold through a connecting longitudinal beam; wherein the limiting mold is provided with an inner mold and a shell, and a channel is formed between the inner mold and the shell; the hydraulic oil cylinder is mounted at one end, facing the limiting die, of the head die and is connected with a baffle; the sheet feeding opening is formed between the baffle and the limiting mold; the driving mechanism is mounted on the head mold; the auxiliary crane is mounted on the limiting mold; and the controller is arranged on the head die and is used for controlling the driving mechanism and the hydraulic oil cylinder to move. The laying device has the advan