BEIJING -?China is mulling a diversified investment scheme for the massive pension fund with professional help to boost the value of the fund, a senior official said on Tuesday.

Yin Weimin, China's human resources and social security minister, made the remarks at a press conference on the sidelines of the national legislature annual session.

"The future investments of the fund will be diversified to avoid putting all the eggs in one basket. Investments will include bank deposits, treasury bonds, projects with good prospects, among others," he told reporters.

"We will give full play to the market mechanism and use help from professional investment agencies to avoid risks in investment," Yin added.