Recently, One of the serious social problems that our society has to solve is digital sex crime. In particular, the majority of the people became aware of the seriousness of digital sex crimes after in the case of “Nth Room", and they came to find countermeasures proactively. Since digital sex crimes occur through digital, teenagers who are familiar with digital devices are likely to be involved, and the damage is continuously increasing due to the nature of digital, which is easy to spread. This study analyzed the perception and status of digital sex crimes among children and adolescents in Daegu. The results of the digital sex crime recognition and fact-finding survey of 944 students(who contained as elementary, middle, and high school) in Daegu are as follows. First, about 95.1% of children and adolescents recognized the seriousness. In particular, 97.6% of female students recognized the seriousness, and 92.3% of male students recognized the seriousness, so the seriousness of female students was relatively high. Second, there was a difference in the perception of the seriousness of digital sex crimes between those who completed a course of digital sex crime prevention education and those who did not. Those who completed a course of digital sex crime prevention education recognized the seriousness of digital sex crimes. From these results, it can be seen that digital sex crime prevention education for children and adolescents is important. Third, it was found that children and adolescents who perceived the seriousness of digital sex crimes committed less digital sex crimes. Therefore, it is necessary to recognize the seriousness of digital sex crime through various contests and campaigns so that students can recognize the seriousness of digital sex crime.