The attack took place at Chongqing Zoo in the city of the same name in south-western China just after 9am on September 19.
It first shows the keeper trying to escape the enclosure but the panda throws its weight behind the door, forcing her to run back inside.
The panda then runs after the zookeeper who tries to keep the animal at bay by putting her hands on its shoulders.
But the panda surges forward, and eventually swipes her off her feet and pounces on top of her.
It appears to be biting the terrified keeper on the arm as she tries to push it away.
She eventually managed to run for the door while the panda was distracted.
Foid tries to film anything without impotently screaming like scared monkeys challenge: Impossible
The attack shocked visitors at the zoo who could be heard screaming as it unfolded.
Chongqing Zoo has since promised to put safety measures in place to ensure a similar incident does not happen again.
The park, built in 1953, covers an area of 111 acres and has a variety of animals including giant pandas, red pandas, the South China tiger and white tigers.
A zoo spokesman said the keeper's condition was not serious but did not elaborate.
And at the time of writing the panda, named Ding Ding, was still visible to the public in its enclosure.
Ding Ding is a female panda born on August 30, 2015 at Chongqing Zoo, with pedigree number 982.
Move along, please. China zoo safety numba 1 
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