The invention provides a ladybird adult conveying and releasing device. The device comprises a box body and a box cover. The box body and the box cover are made of hard paperboards evenly provided with ventilation holes. The box body and the box cover are provided with connection parts. The box cover is connected with the box body through the connection parts. A connection rod is arranged on the inner wall of the top of the box cover. The axial direction of the connection rod is parallel to the plane where the inner wall of the top of the box cover is located. The top of the box cover is provided with a hole. A rope penetrates through the hole. The end, in the box body, of the rope is connected with the connection rod. The other end, outside the box body, of the rope is fixedly knotted. The diameter of a fixed knot is larger than the diameter of the hole. Due to the length of the rope, the connection rod can be pulled to the top of the box cover. When ladybirds are conveyed, ladybird adults are contained in the box body, and the connection parts of the edge of the box cover and the box body are connected through adhesive tape. When the ladybirds are released, the adhesive tape is removed, the box cover is opened, the connection rod connected with the rope is taken out, the connection rod is folded into a bow-shaped hook and hooked to a plant, and people only need to wait the ladybirds to automatically climb out. The device is easy and convenient to use.