The effect of motor regenerative braking on braking performance of parallel hybrid electric city-bus are analyzed and typical driving cycles of city-buses. in Qingdao are discussd. Under Qingdao urban circulating work condition, a regenerative braking control strategy for SWB6105PHEV (a parallel hybrid electric city-bits) is proposed, in which brake power is supplied preferentially by regenerative braking when lower braking intensity is required and by proportionally combination of regenerative braking and frictional braking deduced by fuzzy-logic control strategy when higher braking intensity is required. Emulation results for SWB6105PHEV show that city-buses with regenerative braking have obvious effect of economy energy. Especially under the situation of urban circulating work condition which have frequent braking and lower brake intensity, the energy consumption can be reduced by 15 %similar to 20%