Image watermarking against geometric attacks remains to be the hotspot and challenging point in the present research on watermarking.The existing watermarking algorit hms can not resist geometric attacks efficiently.For addressing the problem,a Contourlet-doma in watermarking algorithm resistant to geometrical attacks based on QR code is proposed.The watermark in this paper is QR code encoded from text message.Firstly,the original image is de composed by Contourlet transform.Then,the low-frequency sub-band of the Contourlet coefficients is divided into sub-blo cks.Finally,each bit of QR code is embedded into each sub-block repeatedly.Experimental results demonstrat e that this method can well resist attacks such as rotation,scaling,Gaussian noise,speckle noise,average filtering,Gaussian filtering and JPEG lossy compression,and its algorithm complexity is lower.In the phase of watermark extraction,the original image is not needed.The proposed algorithm is blind.The w atermarking technology proposed can be widely used in copyright protection of digital products.