CHINA's manufacturing activity expanded at the fastest pace in three months in February as new orders and higher purchase volumes led to a solid rise in production, an official factory survey showed.

The reading should reassure officials that fresh stimulus measures launched late last year are helping shore up a patchy recovery in the world's second-largest economy, ahead of China holding its annual parliamentary meeting starting today (March 5).

Whether the upturn can be sustained remains to be seen amid a trade war that was kicked off by US President Donald Trump's first salvo of punitive tariffs.

The official purchasing managers' index (PMI) rose to 50.2 in February from 49.1 a month prior, the highest since November and beating analysts' forecasts in a Reuters poll of 49.9.

The non-manufacturing PMI, which includes services and construction, rose to 50.4 from 50.2 in January.

Chinese policymakers are expected to announce economic targets and fresh policy support at the high-profile gathering in Beijing, which investors will also watch for signs of further support for the struggling property sector and indebted local developers.

China's $18 trillion economy hit the government's growth target of "around 5 per cent" in 2024, though in an uneven manner, with exports and industrial output far outpacing retail sales while unemployment remained stubbornly high.

Beijing is expected to maintain the same growth target this year, but analysts are uncertain over how quickly policymakers can revive sluggish demand, especially given the intensifying trade tensions with the US.

"Since the PMI data is measured on a month-on-month basis, it may be affected by seasonal factors related to the Spring Festival in January and February," said Zhang Zhiwei, chief economist at Pinpoint Asset Management.

"The manufacturing data is relatively stable," he added, with the caveat that a more accurate assessment would only be possible after the release of further data. China will release trade data for January-February on March 7.