The utility model discloses a forestry engineering seedling device. The product comprises components as follows: the product comprises a shell, a left barrel body and a right barrel body, the left barrel body is welded with a left front closing plate and a left rear closing plate; the left front closing plate is bonded with a left front magnetic sheet; the left rear closing plate is bonded with aleft rear magnetic sheet; the right barrel body is welded with a right front closing plate and a right rear closing plate; the right front closing plate is bonded with a right front magnetic sheet; the right rear closing plate is bonded with a right rear magnetic sheet; the left front closing plate and the right front closing plate are in butt joint and are closed and fixed through attraction of the left front magnetic sheet and the right front magnetic sheet. The bottoms and the tops of the left front closing plate, the right front closing plate, the left front magnetic sheet and the right front magnetic sheet are fixed through bolts. The left rear closing plate and the right rear closing plate are in butt joint and attract the right rear magnetic sheet through the left rear magnetic sheet to be closed and fixed, the bottoms and the tops of the left rear closing plate, the right rear closing plate, the left rear magnetic sheet and the right rear magnetic sheet are fixed through bolts,the left barrel body and the right barrel body form a seedling raising barrel, soil is filled in the seedling raising barrel, and saplings are planted in the soil. The seedling raising device is usedfor industrial engineering seedling raising.