Simple two-step operation in place: select "Insert-Object -VISIO Drawing" in PPT. Copy the edited object in the original VISIO and paste it on the VISIO editing page displayed on the PPT page. You're done! The background is transparent, and VISIO diagram in PPT can be edited. '

2. Click on the picture directly, and remove the background in the visio interface after opening it.

3. If you want to delete the background, just enter VISIO. If you don't have VISIO installed, you can't do it, because you can't edit directly in PPT unless you have Visio installed. Otherwise, PPT will treat Visio as a picture format.