1. computer deletion: log in to QQ by computer, click on the avatar in your profile, enter your space, find "Talk", and click "Delete" in "More" in the lower right corner of the talk you want to delete.

2. Mobile phone deletion: log in to QQ with your mobile phone, click on your profile directly, enter your profile, click on "QQ Space" to mark the thumbnail of the talk you want to delete in the upper right corner, find "Delete" and click.