This article analyzes the predicament of “originality” adaptation in the object qualification determination of generative AI-generated content, the conflict of interests among multiple subjects in the rights ownership, and the ambiguity of rights and responsibilities in the division of infringement liability. It holds that the current system’s regulation of AI-generated content has standard deficiencies and implementation obstacles. It is necessary to respond by establishing hierarchical object identification standards, setting contribution-oriented rights ownership rules, and improving the full-chain infringement supervision mechanism. Research can offer institutional design references for AI-generated content’s copyright protection, balancing technological innovation and rights protection.