Multi-protocol multi-service public network security access method

The invention relates to the technical field of public network security access, in particular to a multi-protocol multi-service public network security access method. According to the invention, the power station system is divided into the centralized control center system and the power plant equipment system according to functions; an encryption device, a business server, a data acquisition server, a switch, a load balancing device, a core firewall, a database auditing system, an anti-virus gateway, an intrusion detection system, a public network prepositive server, a forward isolation device, a reverse isolation device, a protocol conversion server and a bastion host are configured in each of the centralized control center system and the power plant equipment system. According to the invention, the problem that the multi-protocol and multi-service security access of the power grid system to the public network cannot be met in the prior art can be effectively solved. 本发明涉及公网安全接入技术领域，具体涉及一种多规约多业务公网安全接入方法；本发明通