分析了二维码的防伪原理，提出了在可变数据印刷中应用二维码进行防伪的方案，在完成基于可变数据印刷的二维码的生成和识别实验的基础上，设计实验比较得出了不同二维码（PDF417码与QR码）的防伪特性的差异。理论分析及实验结果表明，利用二维码对可变数据印刷进行防伪的方案是可行的，并且不同二维码的防伪特性存在差异，在实际应用中可以根据具体的要求选用不同的二维码。

The principle of two-dimensional bar code anti-counterfeiting technology was analyzed. A plan of applying two-dimensional code anti-counterfeiting technology in variable-data printing was put forward. On the basis of experiments on generation and recognition of two-dimensional bar code, anti-counterfeiting properties of two different two-dimensional bar codes (PDF417 code and QR code) were obtained and their difference was compared. The theoretical analysis and experiment results showed that anti-counterfeiting technology based on two-dimensional bar code can be used in variable data printing, besides, different two-dimensional bar codes have different anti-counterfeiting properties; different two-dimensional bar code should be selected according to specific requirements.