Chinese central bank set the average yuan/dollar exchange rate at 6.5180, up 287 points from Monday, when the rate was 6.4893.
The central bank weakened the exchange rate of the national currency for the fifth trading session in a row.
Weakening of the yuan is taking place amid a trade war between Washington and Beijing.
US President Donald Trump has repeatedly criticized China's policy to depreciate yuan. Depreciation of national currency allows Chinese companies to increase yuan-denominated export revenues.