Photoelectrochemical　(PEC)　water　splitting　offers　a　promising　way　for　producing　clean　and　renewable　hydrogen　fuel,　but　how　to　improve　the　solar　conversion　efficiency　is　still　a　challenge.　Herein,　the　sulfurization　of　metal　organic　frameworks　(MOFs)　onto　the　semiconductor　ZnO　to　fabricate　heterojunctions　for　PEC　water　oxidation　was　proposed.　Cellular　ZnO@ZnS,　ZnO@CoS,　and　ZnO@ZnS/CoS　heterostructured　catalysts　thus　obtained　through　the　direct　sulfurization　of　ZnO@zeolitic-imidazolate-frameworks　(ZnO@ZIFs)　composites　exhibit　excellent　PEC　performances.　Particularly,　the　ZnO@ZnS/CoS　represents　a　largely　improved　photoconversion　efficiency　(0.65%　at　0.14　V)　and　photocurrent　density　(2.46　mA　cm(-2)　at　0.6　V)　under　full　spectrum　illumination,　outperforming　those　of　previously　reported　ZnO-based　catalysts　in　neutral　medium.　Clearly,　their　special　cellular　structure　affords　rich　exposed　active　sites　and　long　incident　photon　transport　pathway　for　well　light　absorption.　And,　the　suitable　band　matching　with　strong　electronic　coupling　in　the　integrated　heterojunctions　facilitates　the　effective　electron-hole　separation.　Furthermore,　CoS　acting　as　co-catalyst　can　speed　up　the　hole　transfer　and　simultaneously　participate　in　the　surface　water　oxidation,　which　leads　to　the　lower　oxygen　evolution　barrier　for　ZnO@CoS　and　ZnO@ZnS/CoS.　This　MOF-derivative　decoration　approach　could　be　expanded　to　fabricate　other　composite　photoanodes　for　a　variety　of　energy　storage　and　conversion　applications.