Copyright asset trading platform refers to a platform that allows copyright holders and buyers to conduct copyright transactions through Internet technology. The following are several common copyright asset trading platforms:

1. Intellectual Property Bao: Provides professional intellectual property services, including copyrights, trademarks, patents, etc., to help companies protect intellectual property rights and conduct transactions.

2. Quanbaotong: Committed to building a copyright trading and publishing platform, providing copyright trading, copyright protection and other services.

3. Digital Divide: A comprehensive copyright trading platform integrating copyright and digital resources, providing copyright agency, copyright trading, copyright registration and other services.

4. Hongyan Platform: It is a famous copyright trading platform in China, providing convenient copyright trading services to copyright holders and buyers.

These copyright asset trading platforms have different features and service contents, and users can choose according to their own needs.