Disclosed is a bushing terminal of a vacuum circuit breaker used for interrupting current, which includes: a terminal body having a cylinder that can be inserted into the interior of a contactor and annular protrusions formed to be protrude from an outer circumferential surface of the cylinder; and a flange having an insertion hole through which the cylinder is inserted, wherein the annular protrusions are plastic-deformed so as to be fixed to the insertion hole of the flange.