Mobile qq takes up a lot of memory because of chat records, downloaded files, user data, cache and so on. Reducing memory occupation can be handled by cleaning up QQ space. The specific operation steps are as follows:

1, open QQ, and click the avatar, as shown below.

2. Go to the QQ homepage and click the settings below, as shown below.

3. Enter the setting interface, and click Space Cleanup to enter, as shown below.

4.QQ has its own cleaning function and starts scanning, as shown below.

5. After scanning, click QQ storage space cleaning, as shown below.

6. Enter the clean-up settings interface, and first click clean-up downloaded files, as shown in the following figure.

7. Clear all downloaded unnecessary files, as shown below.

8. Then click Clear Cache Data, as shown below.

9. Click OK to clear the cache, as shown below, so that the memory occupied by mobile QQ will be reduced.