In 2006, Zheng Nanling sold Qian Qian Jingting to Baidu. 20 13, Baidu made full efforts in the mobile internet market. Qian Qian Jingting was renamed Baidu Music, and a classic product disappeared. 20 14 and 20 15, copyright protection began to be valued. The National Copyright Administration issued the Notice on Ordering Online Music Service Providers to Stop Unauthorized Dissemination of Music, and the State Administration of Radio, Film and Television issued the Opinions on Vigorously Promoting the Development of China's Music Industry. Baidu music, which has always ignored copyright procurement, collapsed overnight. However, Qian Qian music is still positioned as a local music player, which can't resist the trend of the Internet and is replaced by mainstream cool dog and QQ music.