A novel method for the watermarking of 3D models is proposed, which is embed robust and fragile double watermark by once operation and the strength of the watermark signal is adaptive with respect to the local geometry of the model. We can detect the intact watermark vertex by fragile watermarking. Furthermore, this paper developed a weighting process of for watermark detection by let the intact watermark vertex have more weight. It can realize the double aims of the copyright protection and the integrity authentication of 3D mesh model. The watermarking schemes is designed for the sender to check the copyright ownership (robust watermarking) and for the receiver to verify the authentication of the received media