Legal analysis: required. Strictly speaking, any use or publication of one's works without authorization is considered infringement. However, if the general public makes videos for non-commercial use and indicates the source at the end, the infringement will be deleted and generally there will be no prosecution. But if it is for profit and used for commercial purposes, such as some promotional videos, advertising videos, live broadcasts, etc., you must purchase the copyright to use the background music.

Legal basis: "Copyright Law of the People's Republic of China" Article 2 The works of Chinese citizens, legal persons or unincorporated organizations, whether published or not, enjoy copyright in accordance with this law.

The copyrights enjoyed by foreigners and stateless persons in their works based on the agreement signed between the country of origin or habitual residence of the author and China or the international treaty to which China is a party shall be protected by this law.

If the works of foreigners or stateless persons are first published in China, they shall enjoy copyright in accordance with this law.

The works of authors and stateless persons from countries that have not signed an agreement with China or are party to international treaties are published for the first time in a member state of an international treaty that China is a party to, or in member states and non-members. Any work published simultaneously in the country shall be protected by this Law.