Information security management method and system of software information system

The invention relates to an information security management method and system for a software information system, and the method comprises the steps: recognizing a security level identifier of information data when the information data uploaded by an application terminal is received; sending the security level identifier to an algorithm matching model, wherein a plurality of encryption algorithms representing different security levels are pre-stored in the algorithm matching model; the algorithm matching model screens out a corresponding encryption algorithm based on the security level identifier, and encrypts the information data based on the screened encryption algorithm; and sending the private key obtained by the encryption algorithm and the number representing the encryption algorithm to the application terminal. The method has the effect of enabling encryption programs of different information data in the software information system to be simpler and more convenient. 本申请涉及一种软件信息系统的信息安全管理方法及系统，其包括步骤当接收到来自