The method of closing the Kugou lock screen floating window is as follows:

1. First open the Kugou app.

2. Next, enter the homepage of Kugou app and click the "three horizontal lines" button in the upper right corner.

3. Then enter the sidebar and click the "Listen to Songs and Identify Music" tool at the top.

4. Finally enter the song-listening interface and turn off the "Desktop Floating Ball" switch button.