A gas supply and liquid supply apparatus, comprising: a first fluid tube which is provided in an endoscope, the first fluid tube (1 16) for supplying a first fluid; a second fluid tube which is provided in the endoscope together with the first fluid tube, the second fluid tube for supplying a second fluid; and a confluence pipe which is provided in a substantially cylindrical distal end part of an insertion part of the endoscope, wherein the confluence pipe consists of: a first communication part which is communicated with the first fluid tube; a second communication part which is communicated with the second fluid tube; and a confluence part in which the first communication part and the second communication part are brought together and in respect to which each of the first communication part and the second communication part have a bent shape, wherein the central axis of the confluence part is not parallel to any of the central axis of the first communication part and the central axis of the second communication part in a joining part in which the confluence part, the first communication part and the second communication part join; characterised in that the central axis of the first communication part is not parallel to the central axis of the second communication part in the joining part, and in that the confluence pipe has a structure in which a central axis of the first communication part and a central axis of the confluence part exist on planes different from one another and a central axis of the second communication part and the central axis of the confluence part exist on planes different from one another in the joining part. a first fluid tube which is provided in an endoscope, the first fluid tube (1 16) for supplying a first fluid; a second fluid tube which is provided in the endoscope together with the first fluid tube, the second fluid tube for supplying a second fluid; and a confluence pipe which is provided in a substantially cylindrical distal end part of an insertion part of the endoscope, wherein the confluence pipe consists of: a first communication part which is communicated with the first fluid tube; a second communication part which is communicated with the second fluid tube; and a confluence part in which the first communication part and the second communication part are brought together and in respect to which each of the first communication part and the second communication part have a bent shape, wherein the central axis of the confluence part is not parallel to any of the central axis of the first communication part and the central axis of the second communication part in a joining part in which the confluence part, the first communication part and the second communication part join; characterised in that the central axis of the first communication part is not parallel to the central axis of the second communication part in the joining part, and in that the confluence pipe has a structure in which a central axis of the first communication part and a central axis of the confluence part exist on planes different from one another and a central axis of the second communication part and the central axis of the confluence part exist on planes different from one another in the joining part. a first communication part which is communicated with the first fluid tube; a second communication part which is communicated with the second fluid tube; and a confluence part in which the first communication part and the second communication part are brought together and in respect to which each of the first communication part and the second communication part have a bent shape, wherein the central axis of the confluence part is not parallel to any of the central axis of the first communication part and the central axis of the second communication part in a joining part in which the confluence part, the first communication part and the second communication part join; characterised in that the central axis of the first communication part is not parallel to the central axis of the second communication part in the joining part, and in that the confluence pipe has a structure in which a central axis of the first communication part and a central axis of the confluence part exist on planes different from one another and a central axis of the second communication part and the central axis of the confluence part exist on planes different from one another in the joining part.