A retractable outside door handle assembly for a vehicle, comprising: an outside door handle that protrudes outward in a width direction of a vehicle or is receivable into an opening formed at a door outer panel of a door of the vehicle; a front link having a first end portion connected to be rotatable with a front portion of the outside door handle along a length direction of the vehicle; a connecting link connected to be rotatable with a second end portion of the front link at a first end portion thereof and installed to be movable along the length direction of the vehicle; a rear link having a first end portion connected to be rotatable with a second end portion of the connecting link and a second end portion of the rear link is connected to be rotatable with the outside door handle; and a housing in which the links are accommodated; characterized by one or more guide apertures (31, 32) which guide the movement of the connecting link is formed in the housing, wherein, the first end portion and the second end portion of the connecting link are fastened to the front link and the rear link, respectively, by pins which are inserted to be movable into the one or more guide apertures (31, 32) to be guided. wherein the one or more guide apertures (31, 32) include a front guide aperture and a rear guide aperture disposed back and forth along the length direction of the vehicle; and an emergency aperture formed to communicate with the rear guide aperture into which the pin fastening the second end portion of the connecting link and the first end portion of the rear link is inserted to be movable and guided to allow the pin to be inserted into the emergency aperture to be movable, wherein a width of the emergency aperture is formed to be greater than a width of the rear guide aperture. an outside door handle that protrudes outward in a width direction of a vehicle or is receivable into an opening formed at a door outer panel of a door of the vehicle; a front link having a first end portion connected to be rotatable with a front portion of the outside door handle along a length direction of the vehicle; a connecting link connected to be rotatable with a second end portion of the front link at a first end portion thereof and installed to be movable along the length direction of the vehicle; a rear link having a first end portion connected to be rotatable with a second end portion of the connecting link and a second end portion of the rear link is connected to be rotatable with the outside door handle; and a housing in which the links are accommodated; characterized by one or more guide apertures (31, 32) which guide the movement of the connecting link is formed in the housing, wherein, the first end portion and the second end portion of the connecting link are fastened to the front link and the rear link, respectively, by pins which are inserted to be movable into the one or more guide apertures (31, 32) to be guided. wherein the one or more guide apertures (31, 32) include a front guide aperture and a rear guide aperture disposed back and forth along the length direction of the vehicle; and an emergency aperture formed to communicate with the rear guide aperture into which the pin fastening the second end portion of the connecting link and the first end portion of the rear link is inserted to be movable and guided to allow the pin to be inserted into the emergency aperture to be movable, wherein a width of the emergency aperture is formed to be greater than a width of the rear guide aperture.