The purpose of this study is to analyze an individual's NFT purchase intention based on the theory of planned behavior. A research model was designed to analyze the influence of attitude, subjective norm, and perceived behavioral control on NFT purchase intention, the influence of perceived usefulness and perceived ease of use on attitude, and the influence and moderating effect of NFT purchase characteristic groups such as NFT uncertainty, FOMO, and personal innovativeness on attitude and NFT purchase intention. Data analysis was conducted using PLS analysis and bootstrapping test using 215 samples of cryptocurrency purchaser data, and the analysis tools used were Excel and SmartPLS. The influence of attitude, subjective norm, perceived behavioral control, NFT uncertainty, FOMO, and personal innovativeness on NFT purchase intention was confirmed. Only the effects of perceived usefulness and NFT uncertainty on attitude were confirmed. NFT uncertainty, FOMO, and personal innovativeness were confirmed to moderate the influence of attitude on NFT purchase intention. In addition, the mediating effect and indirect effect of attitude were also reported.