The world's most populous country and second-largest economy will need 6,330 new aircraft worth USD 950 billion during the 2015-2034 period, Boeing said in its annual China Current Market Outlook.
The country's expanding economy and rising income are driving air travel growth, Boeing said, upping its prediction by 310 units from last year.
"We see strong growth in the country's aviation sector over the long term," Randy Tinseth, vice president of marketing at Boeing Commercial Airplanes, told reporters.
That growth model will be "more sustainable" and "bodes well for tourism", Tinseth said.
More From This Section
China's commercial fleet will number 7,210 aircraft by 2034, the firm said, nearly three times its current size, with aircraft going into service in the next two decades accounting for nearly 90 per cent of it.
As China becomes the world's largest domestic air travel market, Boeing predicts it will need 4,630 single-aisle planes over the period.
China's increasingly affluent consumers and loosened visa policies for Chinese citizens will give long-distance international travel a boost, with 1,510 new widebody aircraft seen as needed.
The US firm says it made more than half the current Chinese commercial fleet, while Airbus says it has an almost 50 percent share.
Tinseth said his company delivered 155 planes to China last year, 21 percent of its global shipments.
It won orders for more than 400 aircraft in the country last year, he added, predicting 2015 will be "a great year".
With the Chinese aviation market growing rapidly, Beijing has said it wants part of the multi-billion dollar market to go to its homegrown passenger planes.