Manufacturing method of radio frequency connector

A manufacturing method of radio frequency connector includes: providing a first workpiece, wherein the first workpiece is a metal sheet and has a first and a second assembling units, and each of the first and second assembling units respectively comprises a metal shell and a first connection portion, and the metal shell comprises a ring body and a welding pin, and the ring body is connected by the first connection portion; providing a second workpiece, wherein the second workpiece has a plurality of center terminals and a plurality of second connection portions, and each center terminal comprises a base portion and a center column disposed on the base portion, and each of the center terminals is respectively connected by the second connection portion; correspondingly positioning the first workpiece with the second workpiece; respectively forming a plurality of insulating bodies between the ring body and the center terminals, wherein the insulating bodies enclose a part of the ring body and a part of the base