An extension pipe supporting apparatus (100) is pivotally attached to a vacuum cleaner extension pipe (40) so as to be retractable into a storage position. The extension pipe supporting apparatus (100) provides an included support (120) for a vacuum cleaner extension pipe (40) by which a vacuum cleaner extension pipe (40) can be independently supported in a substantially upright position. The extension pipe supporting apparatus (100) comprises a shell member mounted to an extension pipe of the vacuum cleaner, and a supporting member (120) engaged with the shell member and pivoting between a first position and a second position, the first position in which the extension pipe is supported in a standing posture on a floor and the second position in which the supporting member is folded to be in contact with the extension pipe. Accordingly, the user can keep the extension pipe in a standing posture on a floor, and therefore, the user does not have to bend over to pick up the extension pipe from the floor when restarting the cleaning work.