The invention discloses an anti-drag material for a magnetic control surface and a preparation method thereof. The anti-drag material comprises magnetic particles, a polymer matrix and a curing agent, wherein the magnetic particles are subjected to hydrophobic treatment and then are uniformly scattered into the polymer matrix, and the curing agent is added and coated as a film; and after curing, the anti-drag material for the magnetic control surface, capable of changing the surface roughness or the specific surface roughness under the effect of a magnetic field, is formed. The anti-drag material for the magnetic control surface has excellent anti-drag property and adaptability and is capable of realizing a scheme for intelligent surface anti-drag, magnet replacing surface anti-drag or specific working condition surface anti-drag according to different working conditions of surface anti-drag objects so as to promote the usability of the anti-drag objects.