The invention discloses an easy-to-use seedling culture device for forestry planting. The seedling culture device comprises a box body and a box cover, the opening end of the box body is located at the top end, the lower surface of the box cover is in contact with the top wall of the box body, the lower surface of the box cover is fixedly connected to the upper surfaces of limit rings, the outer side faces of the limit rings are in contact with the inner side wall of the box body, and vent holes are formed in the box cover. According to the seedling culture device, movable blocks are slidablyconnected with the interiors of two strip-shaped holes, the side faces, close to the interior of the box body, of the two movable blocks are fixedly connected to the left and right side faces of a cultivation plate respectively, the position of the cultivation plate in the box body can be shifted by lifting two positioning rods, the positioning rods are in contact with anti-slip pads on two limiting rods by rotating the positioning rods so that the position of the cultivation plate in the box body can be fixed, a user can conveniently conduct operation on seedlings in cultivation grooves, theseedlings can receive sunshine easily, the operation is convenient, and the problems raised in the background art are solved.