Provided is a one-touch artificial nail including: a thin film nail body (210) coupled to a nail and having one end coupled to be located at a free edge side of the nail, the other end coupled to be located at a cuticle side of the nail, and an adhesive surface formed at a location facing the nail; a design layer (220) formed by painting an upper portion of the nail body (210); a double-sided adhesive tape body (110) attached to a lower portion of the nail body and having a plurality of curved portions where a plurality of first cutting lines (114) having a linear shape in a vertical direction are formed, and connecting portions formed between the first cutting lines so that the plurality of curved portions are not separated; and a release tape (120) detachably coupled to a lower portion of the double-sided adhesive tape body (110), having a greater area than the double-sided adhesive tape body (110), and having a plurality of second cutting lines (124) formed at the same locations as the first cutting lines (114) to pass in the vertical direction, wherein the release tape (120) has a grip (122) connecting to and protruding from the outer circumference of the release tape (120), and the grip (122) is disposed at a location protruding from the outer circumference of the nail body (210). Since the one-touch artificial nail may be attached to the artificial nail without bubbles or winkles, it is possible to prevent the adhesive area from decreasing, thereby improving the cohesive force. Therefore, the one-touch artificial nail may be easily applied to wearers having different nail curvatures.