Printed　circuit　heat　exchanger(PCHE)has　been　widely　used　in　supercritical　carbon　dioxide(S-CO2)power　systems　because　of　its　high　heat　transfer　efficiency　and　good　compactness.However,due　to　the　large　variety　of　PCHE　configurations,channel　selection　in　practical　applications　lacks　a　basis.Therefore,this　paper　discussed　the　heat　transfer　and　friction　characteristics　and　the　synergy　of　three　fields　in　the　channel　under　the　guidance　of　the　field　synergy　principle　for　four　typical　PCHE　channels.Additionally,the　comprehensive　performance　of　four　channels　was　compared.Finally,the　heat　transfer　and　friction　factor　correlations　for　S-CO2　in　four　channels　were　established.The　findings　demonstrate　that　the　synergy　of　velocity　and　pressure　fields　of　the　straight　channel　PCHE　is　better(β≈180°),so　its　resistance　loss　is　relatively　small.The　zigzag　and　sinusoidal　wavy　channels　and　the　airfoil　fins　can　reduce　the　angle　a　between　the　temperature　gradient　and　velocity,thus　enhancing　the　heat　transfer.The　sinusoidal　wavy　channel　can　reduce　flow　resistance　compared　to　the　zigzag　channel　due　to　the　rounded　comers.The　streamlined　airfoil　structure　can　guide　the　flow　and　reduce　backflow,thus　reducing　resistance　losses.In　the　range　of　Re　studied　in　this　paper,the　maximum　error　of　the　proposed　heat　transfer　and　friction　factor　correlations　of　PCHE　is　7.0％,which　shows　good　fitting　accuracy.The　research　in　this　paper　can　provide　a　reference　for　the　selection　and　design　of　PCHE　with　different　channel　configurations.