A bonding device for a curved cover plate with an irregular shape bonding to a flexible screen, wherein the curved cover plate with the irregular shape comprises a flat area and two arc hook areas located on both sides of the flat area, and the arc hook areas smoothly extend from the flat area; wherein the bonding device for the curved cover plate with the irregular shape bonding to the flexible screen comprises: a first bonding half (110 having a first abutting wall formed on a periphery thereof, the first abutting wall comprises a first abutting curved wall and a first abutting flat wall, the first abutting curved wall matching with a shape of an inner surface of the arc hook area on one side of the curved cover plate with the irregular shape, and the first abutting flat wall smoothly extending from the first abutting curved wall; a second bonding half having a second abutting wall formed on a periphery thereof, the second abutting wall comprising a second abutting curved wall and a second abutting flat wall, the second abutting curved wall matching with a shape of an inner surface of the arc hook area on another side of the curved cover plate with the irregular shape, and the second abutting flat wall smoothly extending from the second abutting curved wall, wherein the first bonding half and the second bonding half have a closed position, and an open position where the first abutting flat wall and the second abutting flat wall are separated from each other, in the closed position, the first abutting flat wall and the second abutting flat wall abut a middle portion of the flexible screen onto an inner surface of the flat area of the curved cover plate with the irregular shape, in the open position, the first abutting curved wall and the second abutting curved wall abut edges of the flexible screen onto the inner surfaces of the arc hook areas of the curved cover plate with the irregular shape; and a driving component configured to drive the first bonding half and the second bonding half to move relative to each other, such that the first bonding half and the second bonding half switch between the closed position and the open position; characterized in that, in the closed position, the first abutting flat wall abuts against the second abutting flat wall on the same plane. a first bonding half (110 having a first abutting wall formed on a periphery thereof, the first abutting wall comprises a first abutting curved wall and a first abutting flat wall, the first abutting curved wall matching with a shape of an inner surface of the arc hook area on one side of the curved cover plate with the irregular shape, and the first abutting flat wall smoothly extending from the first abutting curved wall; a second bonding half having a second abutting wall formed on a periphery thereof, the second abutting wall comprising a second abutting curved wall and a second abutting flat wall, the second abutting curved wall matching with a shape of an inner surface of the arc hook area on another side of the curved cover plate with the irregular shape, and the second abutting flat wall smoothly extending from the second abutting curved wall, wherein the first bonding half and the second bonding half have a closed position, and an open position where the first abutting flat wall and the second abutting flat wall are separated from each other, in the closed position, the first abutting flat wall and the second abutting flat wall abut a middle portion of the flexible screen onto an inner surface of the flat area of the curved cover plate with the irregular shape, in the open position, the first abutting curved wall and the second abutting curved wall abut edges of the flexible screen onto the inner surfaces of the arc hook areas of the curved cover plate with the irregular shape; and a driving component configured to drive the first bonding half and the second bonding half to move relative to each other, such that the first bonding half and the second bonding half switch between the closed position and the open position; characterized in that, in the closed position, the first abutting flat wall abuts against the second abutting flat wall on the same plane.