Crown Resorts' head of VIP operations, Jason O'Connor, has been released from a Shanghai prison after serving a 10-month sentence for promoting gambling.

Foreign Minister Julie Bishop confirmed Mr O'Connor had been released from detention on Saturday and was returning to Australia.

"Mr O'Connor is the last of three Australian Crown employees to be released following completion of their sentences," Ms Bishop said.

Mr O'Connor was taken by Public Security Bureau officers from a Shanghai detention centre directly to the airport, it is understood.