This　paper　focuses　on　an　experimental　study　of　the　hydraulic　performances　of　a　new-type　dissipater,　named　allotypic　hybrid-type　flip　bucket　(AHFB),　which　combined　the　advantage　of　the　diffusion　flip　bucket　(DFB),　slit-type　flip　bucket　(SFB)　and　hybrid-type　flip　bucket　(HFB)　together.　Experiments　were　performed　on　laboratory　model　with　four　types　bucket,　as　the　continuous　flip　bucket　(CFB),　the　SFB,　the　HFB　and　theAHFB.　The　expression　for　the　flow　regimes　and　the　trajectory　of　jets　is　studied,　considering　data　proposed　by　other　researchers.　Pressure　distributions　on　the　bottom　and　vertical　faces　of　the　bucket　are　presented.　It　indicated　that　as　contraction　of　lower　bucket　of　AHFB,　the　pressures　on　vertical　face　were　positive,　which　protected　the　occurrence　of　cavitation　damage.　The　important　observations　are　that　when　the　Froude　number　exceed　5,　the　scour　depth　of　combined　bucket　decreases　with　increase　in　Froude　number,　and　can　reduce　about　70%　compared　with　that　of　CFB.　©　2013　Taylor　&　Francis　Group,　London.