The huge animal, thought to have had a broken jaw, was said to be in a 'bad way'.
It was moved by rescuers to a nearby pool to keep it alive until it can hopefully be transferred back to the sea.
A team from a nearby sea life sanctuary was called to the scene at Manly today.
The shark was seen thrashing around on the beach after being washed ashore
Swimmers ran from the water after the shark emerged
It is not yet known whether the baby - believed to be a baby great white measuring 1.8 metres - can be returned to the wild.
Dan Korocz, who was with his children - aged two and four - when the drama unfolded, told 7 News in Australia: "When you see a real-life shark, it's scary.
"We were down on the beach for lunch with my family.
"I've got a four-year-old and a two-year-old and we went down to the water's edge and then it came in."
The shark has now been moved to a pool, where it is being looked after
According to witnesses, lifeguards with jetskis initially tried to prevent the creature from coming ashore.
Experts from Manly Sea Life Santuary rushed to move the wounded shark.
One rescuer told 7 News: "It looked in a really bad way... it didn't have the strength to deal with the waves."
The shark had to be lifted into a vehicle and then carried in a sling into the pool, where it is now recovering.
The shark is believed to have had a broken jaw
The beach in Sydney was crowded when the shark was washed ashore
Large groups have visited it at its new home since the drama today.
The shark, which is a protected species, will be assessed before a decision is made about releasing it back into the ocean.