It is a method of using artificial intelligence technology to detect whether the text is generated by AI. AIGC duplicate checking, called "content detection generated by artificial intelligence", is a method to detect whether the text is generated by artificial intelligence by using artificial intelligence technology. With the continuous development of artificial intelligence technology, AI has been able to generate high-quality text content, which brings new challenges to the academic and publishing circles. In order to detect whether the text is generated by AI, people have developed many methods, the most common of which is based on the principle of "double checking". The basic principle of AIGC duplicate checking is to judge whether the text is generated by AI by comparing the similarity between the text and existing data (such as academic papers and news reports). If the similarity is too high, it is probably generated by AI.