The aircraft struck several cars on the A27, a major road, north of Shoreham Airport, which was taking place the meeting, said the police. The accident occurred at 14:20 (12:20 GMT).
According to relief, the crash caused the death of seven people and one person is in serious condition. 14 people were also injured more lightly.
The accident aircraft is a Hawker Hunter fighter 50s
Spectators filmed the scene.
According to initial findings and witnesses, the pilot was unable to recover the aircraft to the output of a loop, and it crashed on a road adjacent the airshow site.
Police said that the aircraft had hit several vehicles at that time, before finishing his run in the bushes.
A team of office British Air Accident investigation (AAIB) was dispatched on site to investigate the circumstances of the tragedy, said a spokesman.