It happened on the 1500 block of North 62nd Street.
Officers say when they arrived at the scene, several dogs were found attacking a man.
An officer discharged his weapon, striking two of the canines.
The victim was transported to Lankenau Hospital, where he was listed in critical condition.
Authorities say the officer involved was not injured.
A spokesperson with ACCT Philly told Action News one dog died and the other is in critical but stable condition.
No further information has been released on this incident.