The　two-dimensional　WS2　material　with　the　capability　of　achieving　high　photoelectric　characteristics　has　attracted　more　and　more　attention.　However,　it　still　suffers　from　the　limited　optical　absorption　and　the　lower　photogenerated　carrier　lifetime.　Here,　we　report　a　WS2　photodetector　decorated　by　the　environment-friendly　and　stabilized　graphene　oxide　quantum　dots　(GOQDs)　as　hole　harvesting　media.　Through　introducing　GOQD5　by　a　simple　solution　method,　the　photoelectric　performances　of　the　photodetector　are　improved　efficiently.　The　photoresponsivity　of　the　photodetector　is　increased　to　12.5　mA　W-1,　and　the　detectivity　is　also　improved　to　about　2.01　x　10(10)　Jones.　The　enhanced　photoresponsivity　is　attributed　to　the　GOQD5-WS2　heterostructure　and　photogating　effect　of　GOQD5,　which　can　promote　the　separation　of　the　photogenerated　electron-hole　pairs　and　the　hole　carriers　trapped　in　GOQD5,　respectively.　These　reasons　also　extend　the　recombination　time　between　them.　This　work　may　provide　a　new　approach　for　preparing　green　and　environment　friendly　photodetector　with　enhanced　performance.