1. Select a piece of music you like on Xigua Video and click the "Share" button in the lower right corner. Select "Download Music" in the pop-up menu to download the music to the local phone.

2. Open the phone system settings, click the phone's settings icon to enter the system settings interface.

3. Find the "Alarm Clock" item in the settings interface and click to enter. Select the "Local Music" option, find the previously downloaded Xigua Video music, and click OK to set it as the alarm clock tone.