Creep deformation-resisting dilatometer

The invention relates to a creep deformation-resisting dilatometer, which comprises a left bracket and a right bracket, wherein the left bracket and right bracket can relatively move and oppositely move in the left and right direction; the left and right brackets are provided with a displacement sensor for measuring the displacement of the right bracket relative to the left bracket; the left bracket is provided with a left clamp component for clamping and fixing a sample of which the displacement measurement direction is the left and right direction; the right bracket is provided with a right clamp component for clamping and fixing the sample; and the clamp force of the left and right clamp components on the sample is vertical to the left and right direction. The creep deformation-resisting dilatometer provided by the invention can be used for solving the problem that the creep deformation of the sample is easily caused by the clamp force in the measurement direction under the high temperature condition in the prior art.