The invention relates to a Harris-based digital watermarking method with angular point geometric attack resistance, and discloses a Harris-based watermark embedding and extracting algorithm. The method comprises the following steps of: firstly searching watermark embedding areas from a carrier image embedding rotary flag area and a rotation angle detection and water mark region flag area, and resisting rotary attacks and translation attacks through carrying out position adjustment and angle correction on the flag areas so as to complete image preprocessing; after the image preprocessing is completed, extracting feature points by using a Harris operator, screening stable feature points, dividing the stable feature points into different small rectangular areas, selecting feature areas matched with watermark information of corresponding watermark image blocks according to sizes and a quantity of feature areas screened according to a watermark information size requirement, and embedding watermarks to the selected feature areas after carrying out wavelet transformation, so as to enhance the shearing attack resisting robustness of the algorithm and complete the watermark embedding and extraction.