The invention discloses an apparatus for fast lively replacing a feeder terminal. The apparatus comprises a connector socket, a connector plug and an installation tool; the connector socket is arranged on a switch body; the connector plug is arranged at the upper end of the feeder terminal; the connector plug includes a plug locking seat and a guiding shaft sleeve which sleeves the plug locking seat; the connector plug is connected with the connector socket through the plug locking seat; the plug locking seat is oppositely provided with installation cantilevers; the guiding shaft sleeve is oppositely provided with unlocking pull rods; and the installation tool includes an insulating operating rod and an installation protection basket connected with the upper end of the insulated operating rod, wherein the installation protection basket is provided with a straight rod for assembly and a bent rod for disassembly. The apparatus and method for fast lively replacing the feeder terminal of the invention are used for non-power-outage operation in the maintenance and upgrade of the feeder terminal of a distribution network, one person can replace the feeder terminal easily, and the non-power-outage maintenance of the distribution network can be realized.