To cast QQ Music to the TV, you need to connect the mobile phone and the TV to the same network. The method is:

1. First open QQ Music on the mobile phone, click on the upper left corner of the QQ Music homepage to enter the QQ Music function page.

2. In the function page of QQ Music, turn on the QPlay and car music functions. (This is the multi-device delivery function of QQ Music)

3. After turning on the function, open the playback page of any song. At the bottom of the page, you can click the corresponding function button according to the actual needs of screencasting. (The demonstration takes TV screen mirroring as an example)

4. After clicking the TV screen mirroring button, QQ Music will automatically scan the TV devices on the same network, and then pop up a list of connectable devices.

5. The software takes a certain amount of time to perform the screen casting operation. When the screen casting is completed, a green check mark appears on the page, indicating that QQ Music has been successfully cast to the TV.