The paper written by Ai has a high duplicate checking rate. Articles generated by AI writing often repeat sentences, phrases and even paragraphs in other articles, which leads to an increase in duplicate checking rate. Artificial intelligence, abbreviated as AI in English. It is an important driving force of the new round of scientific and technological revolution and industrial transformation, and it is a new technical science to study and develop theories, methods, technologies and application systems that simulate, extend and expand human intelligence. Artificial intelligence is an important part of intelligence. It tries to understand the essence of intelligence and produces a new intelligent machine that can respond in a way similar to human intelligence. Artificial intelligence is a very extensive science, including robotics, language recognition, image recognition, natural language processing, expert system, machine learning and computer vision.