This study aims to determine whether there is a relationship between Body Image (Body Image) with Sexting Behavior on Chatting Application Users. This study used quantitative approach, with data collection technique used questionnaires. The measuring tool used is Body Shape Questionnaire (BSQ) to measure Body Image and Sexting Behaviors Scale (SBS) to measure Sexting Behavior. The sample of this research is adolescents aged 12 - 21 years as many as 90 people with purposive sampling method. Technical analysis used Spearman Correlation. Results of data processing shows that there is a relationship between Body Image (Body Image) with Sexting Behavior on Chatting Application Users. The relationship between Body Image with Sexting Behavior is Positive which means if the Body Image value is high then Sexting Behavior is high and if the Body Image value is low then Sexting Behavior is low.