China's main Shanghai stock index jumped more than three percent in morning trade on Friday, as sentiment turned for the better on government moves to boost the market, dealers said.

The Shanghai Composite Index jumped 3.07 percent, or 113.92 points, to 3,823.25 while the Shenzhen Composite Index, which tracks stocks on China's second exchange, rose 3.59 percent, or 70.18 points, to 2,025.53.