The purpose of this study is to find out and understand about Criminal Liability for Internet Pornography Perpetrators in the Application of the Principle of Lex Specialis Derogat Legi Generalis in the Perspective of Criminal Law. This type of research uses a descriptive analysis research method, namely a method that describes and explains a fact or reality systematically. The legal materials used are primary, secondary and tertiary legal materials. Discussion Results: The Pornography Law does not expressly eliminate the crime of pornography in the Criminal Code or the ITE Law, but still applies the Criminal Code and the ITE Law for several other cases of pornography crimes. In certain cases and circumstances with stronger legal reasons, the crime of pornography in the Criminal Code or the ITE Law can be applied. In a case of pornography crime, criminal liability for perpetrators of pornography on the internet can be applied through the principle of lex specialis derogat legi generali, which means that special law overrides general law. Criminal liability for perpetrators of pornography via the internet In the Application of the Principle of Lex Specialis Derogat Legi Generalis is regulated in Articles 29 to 38 of Law Number 44 of 2008 concerning Pornography. That this Law specifically regulates pornography so that general legal rules can be set aside by using specific legal rules.