The　NMR　＇　s　probe　consists　of　the　static　magnetic　field　generator　(magnetic　source)　and　the　RF　coil.　It　is　very　strict　for　the　homogeneity　of　the　static　magnetic　field　intensity　of　the　magnetic　source,　so　the　cost　of　the　magnetic　source　is　more　expensive　in　the　entire　nuclear　magnetic　resonance　instrument.　The　magnetic　source　generally　consists　of　electromagnet,　permanent　magnet　and　superconducting　magnet.　The　permanent　magnet　basically　needs　not　to　spend　on　operation　and　maintenance　and　its　cost　of　manufacture　is　much　cheaper　than　the　superconducting　magnet.　Therefore,　the　permanent　magnet　may　be　the　only　choice　for　the　static　magnetic　field　device　if　we　want　to　use　the　magnetic　resonance　instrument　as　an　analyzer　for　production　by　reducing　price.　A　new　probe　magnet　was　developed　on　the　basis　of　the　permanent　magnet　ring　in　this　paper　to　provide　a　technological　way　for　reducing　the　manufacturing　cost,　weight　and　volume　of　the　existing　nuclear　magnetic　resonance　instrument　(including　MRI)　probe.