Secure printing method, device and system and secure printer

The invention provides a secure printing method. The method comprises the steps of receiving print information, wherein the print information includes a file identifier, a secure level and/or an allowed printing number; determining whether or not the print information conforms to a secure rule; if yes, sending a printing instruction and printing the file to be printed, wherein the printing instruction is sent for obtaining the file to be printed. The problem in the prior art that conventional printing modes easily cause leakage is solved, and the secure printing method, a secure printing method device and system and a secure printer which can determine whether or not the printed file meets secure requirements and have high security are provided. 本发明提供种保密打印方法，所述方法包括：接收打印信息，所述打印信息包括文件标识，密级和\或允许打印份数；判断所述打印信息是否符合保密规则；如果所述打印信息符合保密规则，则发送打印指令，所述打印指令用于获取待打印文件，并打印所述待打印文件。本发明解决了现有技术中传统打印方式容易造成泄密的问题，提供了种可以能够判断打印文件是否符合保密要求，安全性高的保密打印方法、装置、系统及保密打印机。