<p>A vacuum cleaner includes: an upright body; a head unit connected to a front side of the upright body, and configured to suck foreign substances from floor surfaces to be cleaned; and a wheel assembly mounted on the upright body to guide the upright body to move and rotate, wherein the upright body includes a first housing provided on the wheel assembly to be rotatable from side to side, and a second housing provided on the first housing to be rotatable back and forth. Therefore, the vacuum cleaner enables a user to move and rotate the vacuum cleaner by moving freely an extension frame that extends upwardly from the second housing.</p>
