In　the　network　economy,　each　player　(node)　needs　to　decide　different　link　forms　to　maximize　its　own　profits　(such　as　information　flow),　but　the　choice　of　link　form　will　be　affected　by　the　coalition　structure　and　profit　distribution　in　which　vary　depending　on　the　link　form.　The　traditional　non-cooperative　games　cannot　solve　these　network　externalities　problems,　and　the　traditional　cooperative　games　do　not　involve　strategy　design　issues.　At　the　same　time,　due　to　the　uncertainty　in　real　life　and　the　difficulty　of　obtaining　accurate　profits,　the　approximate　range　is　usually　expressed　as　an　interval.　To　effectively　solve　the　problem　of　bilateral　links　under　profits　represented　by　interval　value,　considering　both　link　form　selection　and　profit　distribution,　a　noval　interval　noncooperative-cooperative　biform　game　method　based　on　interval　Banzhaf　values　is　put　forward.　The　interval　noncooperative-cooperative　biform　game　consists　of　four　factors:　Players,　strategy,　coalition　mode　and　coalition　characteristic　function,　and　it　is　divided　into　two　parts　of　interval　noncooperative　games　and　interval　cooperative　games.　Where　the　payoff　value　of　the　interval　non-cooperative　game　is　not　directly　given,　but　is　determined　by　the　interval　cooperative　game.　This　ensures　that　the　interval　biform　game　can　reflect　and　trace　the　problem　of　network　efficiency　properties,　which　is　also　the　biggest　difference　from　the　traditional　noncooperative　game.　Finally,　a　numerical　example　is　adapted　to　verify　the　validity　and　applicability　of　the　models　and　methods,　which　can　provide　new　ways　to　solve　complex　competition　and　cooperation　problems.　©　2021,　Editorial　Board　of　Journal　of　Systems　Engineering　Society　of　China.　All　right　reserved.