The utility model discloses a crops device of growing seedlings, including box, chamber door and nursery pot, two inside walls of box all are equipped with the draw -in groove that is used for placingnursery pot, the top that the at least inside wall of box is located every layer of nursery pot all is equipped with liquid spray device, the lateral wall of box is equipped with the feed liquor pipeof being connected with liquid spray device, nursery pot includes the nursery pot body and sets up the collecting vat in nursery pot body lower part, nursery pot bottom originally is equipped with the sepage hole, the collecting vat is equipped with out the liquid hole, the one end of box is equipped with the drain pipe, it is connected with the drain pipe to go out the liquid hole, the one end of box still is equipped with the fan. The utility model has the advantages of: can guarantee that the nutrient solution in the nursery pot has sufficient nutrients to every layer of interior bacteriumof nursery pot can not cross infection.