The invention discloses a hinge structure for an airbag frame of an automobile instrument panel. An airbag cover plate is arranged on the airbag frame, and the one or more sides of the airbag cover plate are connected with the airbag frame through the hinge structure; the hinge structure comprises a frame connecting part connected with the airbag frame, and a cover connecting part connected with the cover plate; the frame connecting part is of an arc-shaped section structure outwards protruding towards the airbag frame, and the cover connecting part is of an arc-shaped section structure inwards sunken towards the airbag frame; the frame connecting part comprises a first transition arc section and a second transition arc section, and the cover connecting part comprises a third transition arc section and a fourth transition arc section; and the first transition arc section, the second transition arc section, the third transition arc section and the fourth transition arc section are sequentially connected to form an S-shaped section structure. The hinge structure is high in strength, a hinge can be normally overturned under the conditions of high-temperature point explosion and low-temperature point explosion, and the hinge structure is suitable for a U-shaped unilateral or H-shaped bilateral airbag frame structure, and has good safety and universal performance.