In　this　paper,　a　kind　of　continuously　variable　transmission　(CVT)　for　hybrid　hydraulic　vehicle　(HHV)　is　proposed,　which　splits　the　output　power　of　engine　into　hydraulic　power　and　mechanical　power　two　parts,　and　by　adjusting　the　ratio　between　two　parts　of　power,　the　continuous　speed　variation　and　the　effective　recovery　of　braking　energy　can　be　realized.　A　relevant　mathematical　model　is　built　and　a　simulation　is　conducted　to　analyze　the　performance　of　HHV　equipped　with　that　CVT　in　typical　urban　driving　conditions.　The　results　demonstrate　that　the　HHV　can　achieve　energy　savings　of　10.4%　and　16.4%　respectively　in　two　different　situations　compared　with　original　gasoline　vehicle.　©,　2014,　Qiche　Gongcheng/Automotive　Engineering.　All　right　reserved.