Pressing test tool for gasket

The utility model discloses a gasket pressing test tool which comprises a first clamping plate and a second clamping plate clamped with the first clamping plate. A pressing cavity is formed in the first clamping plate; the pressing cavity penetrates through the first clamping plate in the thickness direction of the first clamping plate. A pressing hole corresponding to the pressing cavity in position is formed in the second clamping plate and located on one side of the flange face, the depth of the pressing hole is smaller than the thickness of the second clamping plate, the support gasket is clamped by the first clamping plate and the second clamping plate, one end of the projection of the upper half split face and the lower half split face on the flange face passes through the projection of the pressing hole on the flange face, and the other end is communicated with the outside. According to the utility model, the sealing performance of the support gasket is tested before installation, and the sealing perfo