Abstract: <SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">Soft nano-sized magnetic ferrite has a wide application because of its quantum size,super paramagetism,and macroscopic quantum tunnel effects etc..There are lots of studies on preparation methods of soft nano-sized magnetic ferrite at home and abroad.These methods mainly include physical method and chemical method.Chemical methods,such as co-precipitation,phase transition,hydro-thermal,sol-gel,microemulsion,supercritical,high-temperature self-propagating synthesis,low-temperature combustion synthesis,spray paralysis,and other methods (shock wave synthesis,wet synthesis under microware field,and explosive consolidation methods etc.),were emphatically introduced,and advantages and disadvantages of these methods were compared.Development trend of soft nano-sized magnetic ferrite researches was presented.</SPAN>