The Premier issued a news release on Monday, saying that NSW becomes Australia's most popular destination for both domestic and international visitors in 2013.
Recent figures showed that the number of Chinese visitors has increased 18 percent in the past year.
Meanwhile, a latest International and National Visitor Survey showed Chinese tourists stayed more than 11.6 million nights and contributed A$1.4 billion ($1.25 billion) to the NSW economy, an increase of A$178.5 million on the previous year.
O'Farrell said NSW is experiencing a Chinese tourism boom, making the state's tourism-related industries every reason to be optimistic about the year ahead.