A vacuum cleaner is disclosed that includes a main body having a dust collector and a vacuum motor; a cleaner frame for detachably mounting the main body; a main brush assembly connected to a lower end of the cleaner frame; and a flexible hose and auxiliary brush assembly connected to the main body, wherein the main body is further provided with a traveling wheel and a support member, whereby the main body can be moved conveniently by using the traveling wheel and the support member and cleaning operation also can be performed by sucking external air through the auxiliary brush assembly at a state of the main body standing in the case that the main body of the vacuum cleaner is detached from the cleaner frame.