In　a　load　balancing　cluster,　the　core　of　task　distribution　is　the　load　balance　algorithm.　This　paper　briefly　discusses　load　balancing,　algorithms　and　their　merits　and　demerits,　then　introduces　a　kind　of　load　balancing　algorithm　that　every　node　sends　a　corresponding　request　stream　to　remark　its　real-time　load　based　on　FCFS　principle.　The　results　of　experience　and　measurement　show　that　this　dynamic　load　balancing　algorithm　is　more　effective　than　static　algorithm.　©　2009　IEEE.