Article 24 of the Fair Trade Law originally designed to be just a supplemental, subsidiary norm. Currently, however, though frequent application by the Fair Trade Commission, it has become the main instrument for regulating competition order, however, the obscure nature of its status and the abstract qudity of the terms often make implementation unpredictable and also difficult to review the reasonable degree of the opinions of Fair Trade Commission. Therefore, the article even includes ironic sobriquets such as "the Shark in the Fair Trade Law" or "the rubber band article". Therefore, this paper tries to clarify the article's status and to identify more concrete meaning of terms. It is hoped that these efforts could highlight the scope of the application and make the praxis more reasonable and predictable.