An arc-preventing fast-breaking surge protection device, wherein the device comprises: an arc-preventing assembly comprising an arc-preventing catapult and an elastic element; a voltage sensitive assembly comprising at least one voltage sensitive element; a response switch assembly comprising a thermosensitive element, a front electrode and a tripping electrode, the tripping electrode being consisted of a movable electrode slice, an electrode welding end and a breaking section, the breaking section being respectively electrically connected to the movable electrode slice and to the electrode welding end; electrode pins comprising a flexible conductor, a first electrode pin and a second electrode pin; and a housing comprising an inner shell and an outer cover; wherein the response switch assembly is a normally closed switch in a normal operating state, the thermal element is electrically connected in series and tightly thermally coupled with the voltage sensitive assembly; when the thermosensitive element melts as the thermosensitive element reaches a preset melting temperature, the tripping electrode is separated from the front electrode due to an elastic stress of the elastic element, the tripping electrode is rapidly catapulted and concealed in the arc-preventing catapult, meanwhile the arc-preventing catapult is rapidly catapulted in a direction away from the front electrode due to an elastic stress of the elastic member, thereby preventing arc generated during instantaneous catapulting of the tripping electrode from forming an electrical breakdown and causing a short circuit and an overload; wherein when an instantaneous surge overvoltage, an overcurrent, a short circuit current or an overloading current through the breaking section exceeds a preset threshold value, the breaking section instantaneously melts and vaporizes so that the movable electrode slice separates from the electrode welding end, while the arc-preventing catapult and the movable electrode slice are rapidly catapulted in a direction away from the front electrode due to the elastic stress of the elastic element, the movable electrode slice is concealed in the arc-preventing catapult, thus preventing arc generated during instantaneous melting and catapulting from forming an electrical breakdown and causing a short circuit and an overload. an arc-preventing assembly comprising an arc-preventing catapult and an elastic element; a voltage sensitive assembly comprising at least one voltage sensitive element; a response switch assembly comprising a thermosensitive element, a front electrode and a tripping electrode, the tripping electrode being consisted of a movable electrode slice, an electrode welding end and a breaking section, the breaking section being respectively electrically connected to the movable electrode slice and to the electrode welding end; electrode pins comprising a flexible conductor, a first electrode pin and a second electrode pin; and a housing comprising an inner shell and an outer cover; wherein the response switch assembly is a normally closed switch in a normal operating state, the thermal element is electrically connected in series and tightly thermally coupled with the voltage sensitive assembly; when the thermosensitive element melts as the thermosensitive element reaches a preset melting temperature, the tripping electrode is separated from the front electrode due to an elastic stress of the elastic element, the tripping electrode is rapidly catapulted and concealed in the arc-preventing catapult, meanwhile the arc-preventing catapult is rapidly catapulted in a direction away from the front electrode due to an elastic stress of the elastic member, thereby preventing arc generated during instantaneous catapulting of the tripping electrode from forming an electrical breakdown and causing a short circuit and an overload; wherein when an instantaneous surge overvoltage, an overcurrent, a short circuit current or an overloading current through the breaking section exceeds a preset threshold value, the breaking section instantaneously melts and vaporizes so that the movable electrode slice separates from the electrode welding end, while the arc-preventing catapult and the movable electrode slice are rapidly catapulted in a direction away from the front electrode due to the elastic stress of the elastic element, the movable electrode slice is concealed in the arc-preventing catapult, thus preventing arc generated during instantaneous melting and catapulting from forming an electrical breakdown and causing a short circuit and an overload.