Because　of　their　relatively　high　efficiency,　high　photostability,　abundance,　low　cost,　and　nontoxic　qualities,　titania-based　photocatalysts　are　still　the　most　extensively　studied　materials　for　the　photocatalytic　production　of　hydrogen　from　water.　The　effects　of　the　chemical　and　physical　properties　of　titania,　including　crystal　phase,　crystallinity,　particle　size,　and　surface　area,　on　its　photoactivity　towards　hydrogen　generation　have　been　identified　by　various　investigations.　The　high　overpotential　for　hydrogen　generation,　rapid　recombination　of　photogenerated　electrons　and　holes,　rapid　reverse　reaction　of　molecular　hydrogen　and　oxygen,　and　inability　to　absorb　visible　light　are　considered　the　most　important　factors　that　restrict　the　photoactivity　of　titania,　and　strategies　to　overcome　these　barriers　have　been　developed.　These　issues　and　strategies　are　carefully　reviewed　and　summarized　in　this　Minireview.　We　aim　to　provide　a　critical,　up-to-date　overview　of　the　development　of　titaniabased　photocatalysts　for　hydrogen　production,　as　well　as　a　comprehensive　background　source　and　guide　for　future　research.　©　2010　Wiley-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim.