‘Youth Sex Protection Law`` which was enacted from July 1st, 2000 has been made for the protection for youth` sex. Government`s Commission on Youth Protection determined to disclose of personal information on the sexual criminals for youth and notify their identities such as name, birth date, occupation, address(city, county and district) and crimes that have committed on the commission`s homepage and bulletin boards at two central government complex and 16 provincial and metropolitan city buildings. In case of notification of offender in foreign country, the United States require offender to be registered. According to registry provisions called Megan`s Law, sex offenders is classified by the degree of danger and especially the sex offenders in high danger are notified. To make up the weak point in our existing system, it is necessary to prescribe the disclosure as receiving merits of the United States` Megan`s Law. Meanwhile on the December 29, 2005, ``Youth Sex Protection Law`` was amended as follows. First of all, sex offenders who commit a sexual assault repeatedly have to register personal information for 5 years and victims, guardians and chiefs of educational institution related to youth can access registered information. In the second place, all sex offenders are restricted to an employment in the educational institution related to youth for 5 years. Thirdly, juveniles who engaged in prostitution can get rehabilitation treatments as well as cures. This study attempted to investigate amendments of the Youth Sex Protection Law and present reform measures of system.