Abstract: In traditional SNMP framework, GetNext and GetBulk are not efficient to obtain large MIB tables, and will sometimes cause overheads to system and communication due to transferance of meaningless blank lines. With the general characteristics of common complicated network elements well studied, a novel way without altering the protocol, namely the XML-Based SNMP diff-granularity access mechanism is proposed. SNMP agent provides different solutions according to different access granularities including the whole level, node level and variable level. Relevant definitions of MIB and DTD are given out. The experiment results show that the new scheme can reduce system response time.