Provided is a lens barrel assembly and method. The lens barrel assembly including: a lens barrel in which at least one lens is installed; a driving member that moves the lens barrel in the direction of an optical axis; a base at which the driving member is accommodated; a guide member that is formed on the base and guides a movement of the lens barrel; and an elastic unit that connects the base and the lens barrel and includes a plurality of elastic members. The lens barrel assembly can improve image quality of an image processing device by stabilizing the movement of the lens barrel.