Legal analysis: plagiarism is illegal, and legal reference is not illegal. The law allows others to freely use copyrighted works. If you use other people's works, you must indicate their names. For details, please refer to the scope of fair use and legal license. Fair use of copyright is an important copyright restriction mechanism, which means that under certain conditions, the law allows others to freely use copyrighted works without the permission of the right holder, and does not pay them remuneration. "Fair use in the copyright law, from the perspective of the copyright owner, is a restriction on the scope of its copyright; From the perspective of people other than the copyright owner (that is, users), it is a right to enjoy the benefits of using other people's works. " Fair use should include five meanings: first, use should have a legal basis. Second, the use is based on legitimate reasons. Third, the consent of the author and the copyright owner is not required. The fourth is not to pay remuneration. Fifth, it does not constitute infringement, but a legal act.

Legal basis: Article 70 of the Law on the Progress of Science and Technology in People's Republic of China (PRC) violates the provisions of this law, plagiarizes or usurps other people's scientific and technological achievements, or practices fraud in scientific and technological activities, the unit to which the scientific and technological personnel belong or the competent authority of the unit shall order them to make corrections, and the directly responsible person in charge and other directly responsible personnel shall be punished according to law; Those who have obtained financial funds for scientific and technological progress or illegal income shall be recovered by the relevant competent departments; If the circumstances are serious, their illegal acts shall be announced to the public by their units or competent departments, and they shall be prohibited from applying for projects of national science and technology funds and national science and technology plans within a certain period of time.