The invention discloses a compatibility processing method and a management station. The method comprises the steps that: the management station sends a request message to a simple network management protocol proxy of a management node according to a received simple network management protocol operating request, wherein the request message is used for requesting a flag bit which is used for marking the supporting condition of the version of the management node to a management information base; and according to the flag bit returned by the simple network management protocol proxy, the management station judges whether the version of the management node supports the management information base and implements compatibility processing according to the judgment result. Through the compatibility processing method, the supporting condition of SNMP Agent of the versions of the management node to MIB-changed compatibility processing points in the management information base MIB can be obtained quite vividly, and the compatibility of the management nodes of different versions operating in the same network can be achieved effectively.