Purpose: This study aimed to identify the influencing the effects of emotional characteristics of adolescents on cell phone addiction and to form the basis for the developments of programs to protect addictive cell phone use. Methods: The data of the Korean Child-Youth Panel Survey(KCYPS) was analyzed using the SPSS 18.0 program. Results: The influencing factors of the cell phone addiction were gender, attention, physical symptoms, depression, aggression, social withdrawal, games and entertainment, listening to music, text messages, call family and watching movies. The factors accounted for 30.6% of variance in cell phone addiction. Conclusions: These results suggest that cell phone addiction are influenced by emotional characteristics of adolescents. These results may contribute to development of programs to prevent cell phone addiction.