1. Go to the homepage of mobile QQ browser, first set the default mobile search engine of your QQ browser, click the left key of the mobile phone and find "Settings".

2. Select the search engine you want to use, go back to the home page, enter the content you want to search in the input box, and the search results will appear.

3. Enter the video content you want to search and enter the webpage.

4. After entering the video playback, touch the interface and a progress bar will appear. Click the download button on the interface that appears to enter the video caching interface, and then click Start Caching.

5. Cached videos can be viewed in "My Video-Cache Management", or you can directly click "Download" to view your own video download progress. After the download is completed, you can see the completion in the download list.