Touch screen durability testing device

The utility model provides a durability testing device for a touch screen. The durability testing device comprises a base, an adjustable bottom plate, a back plate, a point contact support arm and a to-be-tested screen fixing seat, the base is located at the bottommost portion and supports the whole device, the adjustable bottom plate is installed on the base in an inclined and rotating mode, the back plate is installed on the adjustable bottom plate, the point contact supporting arms are installed on the back plate, the number of the point contact supporting arms is at least two, the to-be-tested screen fixing base is installed on the adjustable bottom plate, and a to-be-tested touch screen is fixedly installed on the to-be-tested screen fixing base. The point contact support arms move back and forth in a reciprocating manner under the action of the driving device, and the point contact support arms are vertically in point contact with a to-be-tested touch screen, so that automatic and adjustable touch scree