The invention discloses a front rollover mechanism of a traffic cone. The front rollover mechanism comprises a fixing frame, wherein the fixing frame is mounted at the front end of an automatic traffic cone withdrawing and releasing storage vehicle body, and is movably connected with a guide gate main beam; the tail end of the guide gate main beam can extend out of or be retracted to one side of the vehicle body; when extending out of the outer side of the vehicle body, the tail end of the guide gate main beam stays level; a plate type door curtain is hung at the lower part of the tail end of the guide gate main beam; an arc-shaped concave opening is formed in the bottom edge of the door curtain; under the action of outer force, the door curtain swings to the back side; and when the outer force stops working, the door curtain naturally drops down under the gravity. The front rollover mechanism of the traffic cone is arranged at the front end of a vehicle; and the traffic cone is corrected from a standing state to a fallen withdrawing state, so that the subsequent action of an automatic traffic cone withdrawing and releasing storage vehicle is facilitated. The mechanism disclosed by the invention can be automatically or semi-automatically unfolded or folded at the front end of the vehicle: the mechanism is unfolded in the working state and is folded on the inner side of the side boundary of the vehicle body n the non-working state, so that normal driving of the vehicle cannot be affected.