Two　magnets　with　the　same　nominal　composition　of　(MM0.3Nd0.7)-Fe-B　(Marked　as　A)　and　[(La0.27Ce0.53Pr0.03Nd0.17)　Nd-0.3(0.7)]-Fe-B　(Marked　as　B)　were　prepared　using　traditional　powder　metallurgical　process,　respectively.　In　order　to　point　out　the　difference　between　two　magnets,　the　magnetic　properties,　microstructure　and　magnetic　domain　of　both　magnets　were　investigated.　Both　magnets　have　the　same　elements,　but　different　raw　materials　of　misch-metal　(MM)　and　La/Ce/Pr/Nd　pure　metal,　which　induces　different　magnetic　properties.　The　magnet　A　with　B-r　of　13.1　kGs,　H-cj　of　7.6　kOe,　(BH)(max)　of　37.8　MGOe　and　magnet　B　with　B-r　of　13.4　kGs,　H-cj　of　5.8　kOe,　(BH)(max)　of　34.5　MGOe　are　obtained.　Although　both　magnets　have　the　similar　B-r,　magnet　A　has　higher　coercivity　than　that　of　magnet　B.　According　to　refined　results　of　characteristic　X-ray　diffraction　peaks,　there　is　a　hard　magnetic　main　phase　with　higher　magnetic　anisotropy　field　(H-A)　in　magnet　A　and　opposite　case　happens　on　magnet　B.　SEM　images　demonstrate　that　magnet　A　has　more　continuous　RE-rich　phase　and　smaller　grain　size　compared　to　that　of　magnet　B,　which　contributes　to　enhancing　the　coercivity.　In　addition,　two　main　phases　of　[Nd-0.82(La,　Ce)(0.18)]-Fe-B　and　[Nd-0.75(La,　Ce)(0.25)]-Fe-B　were　detected　by　the　EDX　calculation,　and　the　two　main　phases　in　both　magnets　were　observed　by　magnetic　domains　again.　Compared　to　magnet　B,　2:14:1　main　phases　in　magnet　A　contain　more　[Nd-0.82(La,　Ce)(0.18)]-Fe-B　main　phases　and　less　[Nd-0.75(La,　Ce)　0.25]-Fe-B　main　phases,　which　also　leads　to　higher　coercivity　due　to　the　different　H-A　among　Nd2Fe14B,　La2Fe14B　and　Ce2Fe14B　phases.　Therefore,　it　is　concluded　that　MM　substitution　could　exhibit　better　magnetic　properties　than　(La0.27Ce0.53Pr0.03Nd0.17)-metal　substitution.　Furthermore,　applications　of　MM　are　beneficial　to　fabricate　(MM,　Nd)-Fe-B　permanent　magnets　with　lower　cost.　(C)　2017　Elsevier　B.V.　All　rights　reserved.