the present invention provides a fabrication method of an electroacoustic transducer capable of simplifying an assembling process on a lead frame and realizing an automatic assembly . the method comprises steps of forming pole piece portions , forming a lead frame having a plurality of base forming areas thereon , each of the areas having lead terminals formed therein , forming bases of a synthetic resin on the lead frame by molding so that the pole piece portions are embedded in the bases , mounting a coil on the pole piece portions embedded in the bases , disposing a support ring and a magnet so as to surround the coil , and placing a diaphragm on the support ring to be held thereby , connecting opposite ends of the coil to the lead terminals , cutting off the lead terminals from the lead frame , putting cases on and fixedly joining the same to the bases , and subjecting the cut lead terminals to a forming process .