The invention discloses a multi-dimensional
encryption anti-counterfeiting printing technology based on the shape of an amplitude modified screen, the anti-counterfeiting printing technology can be used for digitizing anti-counterfeiting information and generating a multi-dimensional
encryption octal anti-counterfeiting information table with eight bits in each group, an octal modulation
signal is generated by virtue of
encryption and channel coding, the anti-counterfeiting information is embedded in the whole page by ordered changes in the shape of the amplitude modified screen through circulating table search and modulation of the amplitude modified screen, and the anti-counterfeiting information can be recognized from any fragment when a printed product is recognized, thereby having very strong anti-fragmentation property, fighting against illegal replication behavior based on a camera, a
scanner, an
electronic document and the like more effectively and being widely applied in the anti-counterfeiting field of printed products.