China urged the United States Republican Party, which is holding its national convention in Cleveland, Ohio, to "stop groundlessly accusing China and interfering in China's domestic affairs".

Foreign Ministry spokesman Lu Kang made the comment in response to the platform adopted by the party on Monday, in which it targets China's domestic affairs and levels accusations at China's policies regarding the South China Sea, Tibet, Taiwan and trade.

"Any party in the United States should view China's development objectively and reasonably, and should correctly understand issues related to China-US ties," Lu said.

"We hope these parties will stop groundlessly accusing China and interfering in China's domestic affairs, and that they will do more to promote trust and cooperation between China and the US," he said.

"Promoting stable development in China-US ties is in line with the fundamental interests of both countries and is conducive to peace and development of the Asia-Pacific region and even the world. It is the right direction that both countries should stick to," Lu said.

Ruan Zongze, vice-president of the China Institute of International Studies, said the parts of the platform concerning China are not reasonable and "reflect neither the mainstream nor the official US policies".

Ruan said the Republican Party and the Democratic Party share the notion that China-US ties are important, and will become more so, and that developing cooperation with China benefits the US.

"There are indeed problems in China-US ties. But we shouldn't be misled by them," Ruan said. "China and the US both value the bilateral ties and don't want to see them go backward."

Zuo Xiying, a researcher of US foreign policy at Renmin University of China's National Academy of Development and Strategy, said the platform reflects the Republican Party's attitude toward China, but there is no need to take the "campaign language" too seriously.

If the Republican Party wins the presidency, Zuo said, the new president will still concern himself with national rather than Republican policies.