The invention provides a processing apparatus and a processing method for a stainless steel petal basket bushing. The processing apparatus comprises an extruding device, the extruding device comprisesa rotating mold seat and a clamping member, and when the rotating mold seat rotates a first angle, one of first roller shaft groups on the rotating mold seat and a second roll shaft group on the clamping member cooperate in an extruding manner, and two extruded second clamping blocks on the clamping member make two third clamping blocks clamped by the two clamping blocks move in a face-to-face manner in order to extrude the stainless steel petal basket bushing located in a model hole formed by the two third clamping blocks. The problems of too thin bushing thickness and poor strength after reducing or processing of the end part of the stainless steel petal basket bushing in the prior art are solved in the invention.