Automatic drilling technology has been widely used in the assembly of aerospace product. With the further application of automatic drilling, the problem of insufficient capacity or model feedback errors occur when the traditional laser normal-leveling methods were used in the complex curved surface structures and intensive fastener arrangements. Aiming at this problem, this paper proposed a contact leveling device and some related process tests and analysis experiments were also conducted. The experimental results indicate that the contact leveling device are still effective to meet the final quality requirements under special conditions.