BEIJING, June 23 -- Senior Communist Party of China (CPC) official Liu Yunshan on Tuesday urged researchers to develop communist theories based on the country's realities.

Liu, a member of the Standing Committee of the Political Bureau of the CPC Central Committee, told a group of researchers that, to consolidate people's confidence in socialism, they should advance research on Marxism-Leninism, Mao Zedong Thought, Deng Xiaoping Theory, the principles of the Three Represents and the Scientific Outlook on Development.

They should also closely follow the latest theories of the CPC, carefully studying President Xi Jinping's remarks and instructions and explain them to the people, he said.

The theoretical research should respond to major and difficult issues in China and serve the ongoing reform, Liu said.

China will need its own theoretical system of social sciences so that "Chinese reality can be explained by its own theories", he said.