The invention discloses a SNMP based server monitoring method. The server monitoring method comprises: according to a management information base MIB file of a server, pre-generating a plurality of data tables corresponding to different monitored objects of the server, wherein each data table comprises an object identifier OID and monitored data of the corresponding monitored object; according to a plurality of received target OIDs which need to be accessed, determining a target data table corresponding to each target OID in a plurality of pre-generated data tables; and under the condition that a plurality of target OID correspond to the same target data table, respectively reading the monitored data which respectively corresponds to the plurality of target OIDs in the target data table. According to the present invention, the OIDs are organized in a data table mode, so that simultaneous access to the monitored data of a plurality of OIDs is implemented, the problem of complex configuration on a SNMP configuration file, which is caused by access to a plurality of OIDs, is avoided, a processing step of the monitored data of the OIDs is simplified, and the snmp agent ability is improved.