Image　inpainting　based　on　Partial　Differential　Equation　(PDE)　has　been　the　state-of-art　technology　nowadays.　BSCB　model　is　the　first　digital　image　inpainting　model　and　can　get　good　inpainting　result　when　the　target　region　is　small　like　scratches.　But　it　is　not　quite　suitable　for　large　target　regions.　In　this　paper,　to　improve　the　inpainting　result　of　the　damaged　image　with　big　missing　area,　the　edge　fitting　based　BSCB　(EFBSCB)　image　inpainting　method　is　proposed.　Firstly　some　pairs　of　disconnected　edges　broken　by　missing　areas　are　matched　and　fitted　as　connected　curves　which　partition　the　missing　areas　into　small　areas,　then　the　intensities　of　the　pixel　points　in　the　curves　are　approximated;　finally,　BSCB　model　is　used　to　smoothly　propagate　the　surrounding　information　into　these　small　missing　areas.　Experimental　results　show　that　this　model　can　get　better　restoration　than　the　original　BSCB　model　when　used　for　large　missing　areas.　©　2010　Binary　Information　Press.