Activated　carbon　supported　nano-TiO2　photocatalyst　material　was　prepared　with　activated　carbon　as　the　carrier　and　carboxyl　methyl　cellulose　(CMC)　as　the　binder.　The　results　indicated　that　the　optimal　TiO2　loading　percentage　could　reach　11.46%　when　the　mass　concentration　of　binder　in　the　dipping　solution　was　15　g/L.　Meanwhile,　the　optimal　experimental　results　showed　that　the　removal　percentage　of　CODcr　from　papermaking　midcourse　wastewater　could　reach　71.43%　under　the　conditions　of　10　W　of　radiation　intensity,　240　minutes　of　radiation　time,　15　g/L　of　photocatalyst　dosage,　4.0　of　wastewater　pH　and　3　mL/L　of　H2O2　dosage.　And　the　effluent　was　able　to　reach　China　national　discharge　standard　I.　Furthermore,　after　three　times　of　repeated　use,　the　activated　carbon　supported　nano-TiO2　photocatalyst　material　still　had　a　relatively　high　catalytic　activity　and　stability,　and　the　recycle　percentage　of　the　photocatalyst　could　reach　92.80%.