"It's a miracle!" shouts a rescue worker as a small head is seen emerging from debris in the video posted by a rescue team working in a rebel-held area of the northern city.
The baby girl is heard crying as her whole body, completely covered in dust, is carefully extracted.
A smiling man then clutches the rescued child in his arms while his colleagues off-camera cry: "God is great!"
It was impossible to independently verify the authenticity of 30-second clip or where it was shot. It was posted by a group calling itself the "Aleppo civil defence".
Daily air strikes by regime forces have killed hundreds of people in rebel-held parts of the city, drawing international condemnation.
Rebels constantly fire mortar bombs at government-controlled western sectors of Aleppo, which was Syria's commercial hub before its civil war erupted in 2011.