1, with different purposes. The main purpose of paper acceptance is to check whether the paper meets academic norms and school requirements and decide whether to pass it; The main purpose of defense is to let graduate students show their research results to the jury, answer questions and evaluate their independent thinking and expression ability.

2. The time is different. The acceptance of the paper is carried out after the paper is submitted, and the defense is carried out after the paper is passed.

3. The scope is different. Paper acceptance mainly focuses on the quality and standardization of the paper, such as format, citation specification, language expression and so on. The defense focuses on the innovation, practical ability and research level of graduate students.