Objective To extract the embedded information without distortion based on the theoretical analysis of AM screening technology and holographic theory, the halftone dot shape holographic anti-counterfeiting algorithm was proposed. Methods The binary image information was encrypted, then the holographic data was binarized by splicing, and halftone image was generated from the digital image. The global properties of holographic data were used for decryption. As long as the cropping size of holographic data was larger than 32 伊32, the carried information of dot shape could be extracted. Results Simulation result showed that the values of NC could reach up to 100% , and after robustness attack, the NC values of the halftone image could still reach more than 90% . Conclusion The algorithm could extract the hidden information well, which has certain robustness and high level of security.