Agricultural plant protection device

The utility model relates to the technical field of agricultural protection, and discloses an agricultural plant protection device which comprises a bird repelling mechanism internally provided with a volatilizable bird repelling agent, and the top and the bottom of one side of the bird repelling mechanism are rotationally connected with the top of a guide arm and the top of a supporting arm respectively. The bottom of the supporting arm is rotationally connected with the side, close to the supporting arm, of the auxiliary arm. The side, away from the supporting arm, of the auxiliary arm and the bottom of the guide arm are rotationally connected with the tops of the two tripods respectively. According to the agricultural plant protection device, the auxiliary arm and the supporting arm are rotationally matched, and the supporting arm and the guide arm are rotationally matched with the bird repelling box, so that the supporting arm and the guide arm can limit and support the bird repelling box to deflect and c