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TheO(¹D)+HCl(¹Sigma^{+)reactionisquiteimportantduetothesignificantroleinstratosphericchemistry Thereactioniscorrelatedwithfiveelectronicstates,andtherearetwoproductchannels,OH(}2^Pi)+Cl(2^P)andClO(2^Pi)+H(2S)ifitsspin-symmetryiskept Uptonow,abinitiocalculationsofthegroundPESandquantumwavepacketcalculationshavebeencarriedoutalongthatsurface,althoughatleastthreeelectronicpotentialenergysurfacesareinvolvedinthisreaction Inthepresentwork,wehavedeterminednewglobalthreeabinitiopotentialenergysurfacesaccurately;andfurthermorequantumwavepacketdynamicshavebeencarriedouttoobtainthecumulativereactionprobabilities