The PCs, aged 24 and 26, were called to Kingsdown Road, a residential street in Islington at about 18:00 BST on Thursday.
One officer suffered a minor head injury and the other sustained injuries to his face and body.
A man has been arrested on suspicion of attempted murder.
The injured officers were taken to hospital for treatment. Their conditions are not said to be serious.
Two police officers were injured when a man threw large knives at them as they attended a disturbance in north London.