The yuan, which was revalued by 2.1 percent to 8.11 per dollar on July 21, closed at 8.0901 versus Monday's 8.0916. It has now appreciated a further 0.25 percent since July's groundbreaking policy move.
Globally, the dollar steadied on Tuesday on the view that the Federal Reserve's run of raising US interest rates would stay on track with the nomination of White House economic adviser Ben Bernanke as the Fed's next chairman. It had shuffled near a two-year high against the Japanese yen on Monday.
The yuan weakened against the euro to close at 9.6681, compared with 9.6626 on Monday. It rose to end at 6.9899 per 100 yen, from 6.9943, the central bank said on its Web site (www.pbc.gov.cn).
"The yuan bounced back a bit, as the greenback stabilised after yesterday's high," said a Shanghai-based dealer with a local lender.
"Yuan movements seem to follow, more and more closely, the international market."
China's central bank reaffirmed on Tuesday its commitment to the yuan's tightly regulated trading range, after saying in September that the band - a daily maximum of 0.3 percent from the previous day's close - was appropriate.