The present study tried to explore the phenomenon of teenagers' prostitution, and to examine the characteristics and causes of teenagers' prostitution, and lastly suggested possible interventions to protect the teenagers' prostitution. First, the characteristics of teenagers' prostitution were summarized as individual prostitution', selection that fly spontaneity form, and extension of target and age. The causes of teenagers' prostitution were summarized to five factors: First, corruption of sex-morality, second, diversification of sexual sevice industry, third, material omnipotence care and surge of consumption sentiment, fourth, codification of man-centered culture, and finally sexual advertisement those alluring teenagers. In order to protect the phenomenon of teenagers' prostitution, several factors were suggested: Sex education, social support for teenagers, activation of equipment for teenagers, and sanction for internet content.