Dynamic　properties　of　a　certain　regenerative　combustion　system　are　numerically　simulated　in　this　paper.　The　influence　of　the　distance　among　burners,　the　preheat　air　temperature,　the　velocity　of　the　air　for.　combustion-supporting　and　the　gas　velocity　on　the　temperature　distribution　in　the　furnace　and　the　distribution　of　NOx　in　outlet　gases　are　considered　respectively　in　the　simulation.　Influences　of　commutation　process　on　combustion　properties　are　also　numerically　investigated　in　the　paper.