"We will not widen the yuan's trading band against the dollar in the near future," Wu Xiaoling, vice governor of the People's Bank of China, told Reuters on the sidelines of a banking event.
The central bank said on September 25 that the trading band against the dollar - a daily maximum of 0.3 percent from the previous close - was appropriate.
But Yu Yongding, an influential economist and a member of the central bank's monetary policy committee, said on Monday that he expected further changes in China's currency policy, including a wider trading band.
The 0.3 percent limit was specified when the yuan was revalued by 2.1 percent against the dollar to 8.11 in July.
It has been a fairly theoretical limit, however.
The currency has never come close to moving so widely in a single day since the revaluation. It has not even moved 0.3 percent from its immediate post-revaluation level.
The yuan closed at 8.0901 per dollar on Tuesday, up just 0.25 percent from its revalued level of 8.11.
Last month the bank widened the yuan's trading band against non-dollar currencies to 3.0 percent a day from the range of 1.5 percent set on July 21 when it scrapped the yuan's dollar peg and adopted a managed float. But that was only a technical move that made it easier to keep the yuan stable against the dollar.
Wu, who repeated a warning about the riskiness of super-low money market interest rates, said the central bank would keep monetary policy basically stable.
"China's macroeconomy has entered a stable growth period and monetary policy will be kept basically stable," she said, reiterating the bank's long-held stance.
Abundant volumes of cash in the banking system have driven short-term interest rates down about 100 basis points this year, encouraging banks to buy government bonds at high prices that might not last. Benchmark 10-year bonds were yielding about 3.05 percent on Tuesday.