This　paper　presents　a　solar　photovoltaic–thermal　cogeneration　component　based　on　parallel　flow　tube　with　tiny　porous　channels　and　micro-heat　tube　array　(MHPA-PV/T).　The　core　heat　transfer　component　effectively　combines　micro-heat　tube　array　and　parallel　flow　tube　with　tiny　porous　channels　and　applies　to　solar　photovoltaic/thermal　system.　The　heat　collection　efficiency　and　power　generation　efficiency　of　the　two　systems　under　instantaneous　and　all-day　operation　conditions　are　studied　and　analyzed,　respectively.　The　results　show　that　the　instantaneous　heat　collecting　efficiency　of　the　tiny　channel　flow　tube　with　the　MHPA-PV/T　components’　maximum　value　is　36.8%　and　increases　by　14.6%　and　the　photovoltaic　increases　by　5.5%.　The　daily　average　photovoltaic　conversion　efficiency　improves　by　9.8%　in　the　all-day　efficiency　test　system,　and　the　daily　average　photo-thermal　conversion　efficiency　enhances　up　to　11.1%,　compared　to　the　component　of　airfoil　tube　in　the　testing　system.　The　MHPA-PV/T　components　based　on　parallel　flow　tube　with　tiny　porous　channels　provide　a　theoretical　basis　for　the　practical　application　and　popularization　of　the　solar　cogeneration　technology　in　the　future.　©　2020,　Springer　Nature　Singapore　Pte　Ltd.