The invention relates to a pipeline washing and pipeline maintaining device, in particular to a bore scrubbing device. Since carbon is accumulated inside a bore and mixtures of carbon and metal filing are generated on a rifling of the bore after a gun is used, the bore scrubbing device is used for scrubbing the bore so as to improve the gun precision. The bore scrubbing device comprises a head scrubbing head device, a reciprocating drive device and a brake device, and is characterized by further comprising a head-tail linkage device and a tail scrubbing head device; the head scrubbing head device is driven by the reciprocating drive device; the brake device is used for fixing the bore scrubbing device to the inner wall of the bore; and the head-tail linkage device is used for correlating the tail scrubbing head device with the head scrubbing head device. The bore scrubbing device has the advantages that as the head scrubbing head device and the head scrubbing head device are adopted, an additional bore does not need to be additionally arranged, and comprehensive scrubbing can be achieved; and due to supporting of the head and tail, the axis of the bore scrubbing device is prevented from inclining relative to the axis of the bore, movement resistance of the bore scrubbing device is reduced, two-end scrubbing is conducted simultaneously, and the effect is remarkably improved.