Against the backdrop of the rapid advancement of AIGC technology, the legal governance of its content creation has become a critical issue. This paper, based on the technical principles and current applications of AIGC, systematically analyzes the legal challenges faced in AIGC content generation by integrating copyright law, infringement liability, and platform compliance mechanisms. It focuses particularly on issues such as copyright ownership, originality determination, platform responsibility, and the delineation of infringing parties. Drawing from policy practices both domestically and internationally, the paper proposes legal pathway recommendations encompassing technical compliance oversight, copyright protection, and platform governance.