Air China has signed a $6 billion deal with Boeing for 60 B-737 aircraft.
They will be delivered between 2016 and 2020, according to a regulatory filing by the airline.
China's national airline said the deal includes Next-Generation 737 and 737 MAX aircraft.
"We are excited to see that the 737 family will play a significant role in Air China's continued success," said Ihssane Mounir, Boeing's Northeast Asia vice president of sales and marketing in a statement.
In September Boeing said China would need more than 6,020 aircraft over the next 20 years as the country's travel market starts to recover.