Abstract: A bicycle cable connection device is designed to connect a tube lashing seat of the bicycle and an outer tube enclosing the bicycle brake cable. The connection device comprises a pliable tube, a tube sleeve, and an adjustable member. The pliable tube has a predetermined length and encloses the bicycle brake cable. The tube sleeve is connected with the adjustment member and the pliable tube. The adjustment member is connected with the outer tube. The connection device is mounted in such a manner that the adjustment member does not obstruct other component parts of the bicycle.