The invention relates to a heterogeneous redundancy SNMP multi-case implementation system and method. The system comprises an SNMP proxy unit, an SNMP executor module, and a dynamic scheduling unit, wherein the SNMP executor module comprises N heterogeneous SNMP executor units which are run in parallel; the heterogeneous SNMP executor units are simultaneously run in parallel; and the dynamic scheduling unit judges operation results of the SNMP case execution units through a majority and preferential selection mechanism, and outputs a judged configuration result to a routing control plane and a data plane or sends a judged search result to a network management terminal. The system and method provided by the invention has the advantages that the problem in the prior art that the single SNMP invalidity in a router causes abnormality of a router management plane is solved, the installation and deployment are simple, the deployment is flexible, and the fault tolerance is high.