The present utility model relates to a fastener for cord comprising a cord lock mounted on a cord of an article for locking the cord, characterized in that said cord lock has a engaging portion which is provided with a hollow central zone having an inner diameter, said fastener for cord further has a base fixed on said article, a convex portion is arranged on said base for engaging with said central zone in a manner of snap-fastening, the inner diameter of said central zone is slightly smaller than the outer diameter of the convex portion on said base so as to make the central zone engaged, in a manner of snap-fastening, with said base. The present utility model is available for fastening an article (such as a fixer or bottom on a cord) so as to avoid inconveniency brought to users by the article.