An electric vacuum cleaner comprising a vacuum cleaner body, a hose to be connected to the vacuum cleaner body, a support pipe to be connected to the hose, and a suction device to be connected to the support pipe. The suction device is provided with running wheels, and the vacuum cleaner body is able to be detachably fastened to the support pipe so that it is supported by the wheels of the suction device when the vacuum cleaner body is attached to the support pipe. The cleaning workability is thus improved, and the external appearance of the vacuum cleaner body in a condition of being detached from the support pipe can be improved.