The present study tried to suggest the appropriate direction and contents of the adolescence sexual education by exploring adolescence's sexual attitudes and behaviors. In a sample survey of 2048 male and female high school students, adolescence's need for sexual education, conflicts, knowledge, behaviors were asked. Results showed that the contests of sexual education students studied in the past as well as the need for the future educations differed by gender. Male and female students also had different contents of sexual conflicts, knowledge, and attitudes. As resemble, experiences of sexual behaviors and reasons of sexual behaviors as well as of not using contraceptive devices were clearly different by gender. These results showed that in executing the adolescence sexual education, contents and directions of education were prepared carefully depending of gender of students.