BEIJING, Jan. 6 -- The total revenue of China's express delivery market hit 204 billion yuan (33 billion U.S. dollars) in 2014, up 42 percent, official data showed on Tuesday.

Businesses made 14 billion deliveries last year, the most in the world and 52 percent up from 2013, according to the State Post Bureau (SPB).

"From 1 billion deliveries in 2006 to 14 billion in 2014, the express delivery sector has grown quickly," said Ma Junsheng, SPB chief.

China will help domestic express delivery companies expand overseas this year to support the cross-border online shopping market, Ma said.

China welcomes overseas couriers who wish to invest in the domestic market and provide management services.