Beijing wanted to use the gathering of finance ministers and central bankers from the Group of 20 rich and developing countries to promote its campaign for a bigger voice in managing global trade and finance.
Instead, the communist government is scrambling to defend its reputation for economic competence following stock market and currency turmoil.
A key worry, despite repeated Chinese denials, is that Beijing will allow its yuan to decline in value to support struggling exporters. That expectation has driven an outflow of capital from China that spiked to a record $135 billion in December.
Zhou said the meeting of finance officials from the United States, Japan, Europe and other major economies should focus on managing lackluster global demand, structural economic reforms and promoting "sustainable and balanced" growth.
Other officials attending the meeting include US Treasury Secretary Jacob Lew and Federal Reserve Chairwoman Janet Yellen; China's finance minister, Lou Jiwei and their counterparts from Germany, Britain, Japan, South Korea, India and South Africa.
Global growth has slowed to its lowest rate in two years and private sector forecasters say the danger of a worldwide recession is rising. The International Monetary Fund cut its forecast for this year's global growth by 0.2 percentage points last month to 3.4 per cent. It said another downgrade is likely in its April update.
The foreign view of China's economic health was shaken last year by a stock market collapse that wiped out USD 5 trillion in paper wealth.
Yestersday, its main market index fell by an unusually large daily margin of 6.4 per cent. Last year's exports fell 2.8 percent from 2014, well below the official target of 6 per cent growth in total trade.
The ruling Communist Party is in the midst of a marathon reform plan aimed at transforming China into a consumer-led economy and reducing reliance on trade and investment.
