China's private equity market's combined deal value jumped 56 percent year-on-year to $69 billion in 2015, a report released on Tuesday by the global management consulting firm Bain & Co said.

The growth was driven by a surge in multibillion-dollar deals and an increase in opportunities in the internet sector, the Boston-based company said.

The report, however, noted that PE activity in 2016 may cool down and struggle to match the fast growth of 2015 amid slowing economic growth.