The　Changes　of　resistivity　with　temperature　of　bulk　nanocrystalline　metal　dysprosium　samples　with　different　grain　sizes　were　studied　in　this　paper.　The　value　of　the　resistivity　is　a　sum　of　the　residual　rsistivity　rho(res)　=　rho　(0),　magnetic　scatter　resistivity　rho(mag)(T)　and　phonon　scatter　resistivity　rho(pho)　(T).　The　mean　grain　sizes　are　10　nm,　30　nm,　100　nm　and　1000　nm.　It　was　experimentally　found　that　the　magnetic　scatter　resistivity　rho(mag)　(T)　and　phonon　scatter　resistivity　rho(pho)　(T)　increase　as　temperature　increases.　The　measured　values　of　the　resistivities　of　the　four　samples　are　in　the　range　of　(0.　8-252)　x　10(-8)　Omega.m,　representing　metalloid　features.　Experiments　also　showed　that　the　residual　rsistivity　rho　(0)　of　the　sample　with　10　nm　mean　grain　size　is　about　98.　6　x　10(-8)Omega.m,　which　is　about　one　order　of　magnitude　greater　than　those　of　the　other　three　samples.　This　is　an　experimental　example　of　the　energy　band　narrowing　and　the　appearance　of　electron　localization　with　the　increase　of　disorder　degree.