The invention provides a granulation method for ultrafine and nano soft magnetic ferrite powder. According to the method, rolling equipment, a crushing machine, turntable stirring and rolling equipment and a vibration sieve group are adopted. The method comprises the steps of putting the ultrafine and nano soft magnetic ferrite powder into a powder storage bin for rolling, crushing the powder through the crushing machine, putting the powder into the turntable stirring and rolling equipment for granulation through a material inlet, putting granulated particles into a material receiving hopper, and putting the particles into the vibration sieve group for screening through a material outlet. The soft magnetic ferrite particles obtained by the granulation method provided by the invention can be used for a subsequent pressing technology for soft magnetic ferrite magnet production; the whole process is executed in a closed and continuous manner; the granulation method has the characteristics of reasonable design, simple equipment, easiness in control, suitability for industrial production and the like.