A　thermal　deformation　mold　with　shear　force　and　a　preparation　method　for　a　neodymium-iron-boron　magnet,　　relating　to　the　field　of　rare-earth　permanent　magnets.　The　obtaining　of　the　shear　force　depends　on　a　particular　angle　between　a　sample　and　a　mold　contact　surface,　　and　the　magnitude　of　the　shear　force　is　controlled　by　adjusting　the　magnitude　of　the　angle.　A　compact　thermal　deformation　magnet　with　high　deformation　is　prepared　by　loading　rapidly-quenched　powder　into　the　mold,　　using　a　spark　plasma　sintering　system　(SPS),　　and　controlling　the　sintering　conditions.　The　deformation　of　the　neodymium-iron-boron　magnet　is　greatly　promoted　by　means　of　the　addition　of　the　shear　force,　　the　deformation　efficiency　is　improved,　　and　the　magnetic　property　is　improved.