Proposed is a detachable lacing apparatus using a shoelace loop for footwear and, more particularly, to a detachable lacing apparatus using a shoelace loop for footwear, the apparatus including a shoelace length adjuster that is provided with, on one side thereof, a length adjuster detachable part on which a locking groove part is formed, wherein in the locking groove part, a shoelace loop passed through a shoelace hole is fastened to be tightened and untightened according to winding and unwinding of the length adjuster, so that the shoelace length adjuster that a user desires may be customized and easily attached to the user's shoes.