The utility model provides an oblique linear structure that movable guide vane facade is sealed. This structure goes out the water's edge at the stator afterbody and processes out the slash, and in the vertical direction, the slope of stator up end slash is bigger slightly than lower tip slash, the mid portion gradual change, and near theoretical sealed some department of stator head is accordingto the facing. The stator afterbody can reach good water sealing effect so that can be totally and stator head contact. The utility model discloses simple structure, suitability are strong, can extensively apply to in the great unit of sealed metal seal of adoption of movable guide vane facade and stator height.