Supercritical　CO2　is　considered　as　an　important　heat　transfer　medium　for　the　third　generation　of　solar　thermal　power　generation,　and　it　is　very　important　to　study　the　heat　transfer　performance　of　supercritical　CO2　and　improve　its　heat　transfer　performance․　In　this　paper,　supercritical　CO2　was　used　as　the　heat　transfer　fluid　through　numerical　simulation　to　investigate　the　effect　of　fin　arrangement　on　the　heat　transfer　process　in　the　discontinuous　airfoil　fin　channel　in　the　printed　circuit　heat　exchanger․　Results　show　that　when　the　staggered　distance　is　4　mm,　its　heat　transfer　performance　and　resistance　performance　are　both　optimal,　with　the　smallest　synergy　angle　between　the　temperature　field　and　the　velocity　field　and　the　largest　synergy　angle　between　the　pressure　field　and　the　velocity　field․　It　is　shown　that　this　arrangement　can　make　the　synergy　between　the　temperature　field　and　the　velocity　field　and　the　synergy　between　the　pressure　field　and　the　velocity　field　both　optimal,　and　the　synergy　between　them　both　deteriorates　with　the　increase　of　the　inlet　mass　flow　rate․　©　2024　Beijing　University　of　Technology.　All　rights　reserved.