A method and an apparatus for producing a radially aligned magnetorheological elastomer molded body containing a matrix resin and a magnetic filler are provided. The method includes the following: placing a permanent magnet 11 in at least one position selected from positions that are spaced from a metal mold 14a having a cavity 14b and located above and below the center of the metal mold 14a; providing a closed magnetic circuit that allows a magnetic flux 19a generated by the permanent magnet 11 to pass through the metal mold 14a from a side thereof, filling the cavity 14b with a composition containing the matrix resin and the magnetic filler; and molding the composition while the magnetic filler is radially aligned. With this configuration, the elastomer material is molded while the magnetic filler is radially aligned by using the permanent magnet.