The shocking moment of a teenage boy from NSW being stabbed multiple times during an illegal beach party was captured on camera.

Witnesses filmed the confrontational attack, as seen in the video above, at Sawtell at the North coast of the state on Sunday night.

Before a knife showed up, blows were thrown and a 16-year-old boy who could be seen in a white shirt was repeatedly stabbed.

The teenager was stabbed in the back , Abdomen and arm stabbed and had to fight for his life.

After the group broke up, street fighting continued among some members of the group about 200 meters away.