November exports from the world’s second-largest economy fell 1.1% from a year earlier, the fourth straight fall.
Exports to the US were down 23%, the worst such result since February and the twelfth monthly decline in a row.
Beijing and Washington are negotiating a potential deal aimed at de-escalating their trade dispute but so far have failed to agree on details.
US President Donald Trump said on Thursday that trade talks are “moving right along”.
But China says existing tariffs must be scrapped as part of any interim deal. The 17-month-long trade war has increased the risks of a global recession.
China’s trade surplus with the rest of the world fell but was still more than $38bn for the month.