Abstract: Since single blind watermarking scheme is difficult to resist against various attacks,a robust multi-watermarking is proposed based on 3D mesh model in this paper.In this scheme,two kinds of watermarks are embedded respectively into vertexes coordinates and topological information of 3D mesh,which enables the model to resist against not only large scaled cropping operation but also high strong noising.During the extraction of the watermark,the original model is not necessary.Experimental results show that the multi-watermark method can effectively increase the ability of resisting attacks,such as translation,rotating,scaling,un-scaling,cutting,noising,re-ordering etc.