BEIJING, April 12 (Xinhua) -- China said on Wednesday that the attempts to boycott the 2008 Beijing Olympic Games due to China's policy on the Darfur issue would doom to fail.

 "I heard some people are saying they would boycott the 2008 Beijing Olympic Games to protest China's policy over Darfur. They are either ignorant or ill-natured," Assistant Foreign Minister Zhai Jun told the briefing on Wednesday afternoon.

 The briefing came a day after Zhai concluded a four-day visit to Sudan as special envoy of the Chinese government.

"These people's remarks run contrary to the spirit of the Olympics and work against the will of the people in the world," he said, adding he believed the Beijing Olympics will be a great success.

He said he did not think China's reputation will be undermined because of the Darfur issue or the good relationship between China and Sudan.

He said China maintains fair stances on international affairs and always plays a positive role.

It is just because of China's crucial role that Sudan accepted in principle the peace plan over the Darfur issue put forward by former U.N chief Kofi Annan, he said.

During his stay in Sudan, Zhai held meetings with Sudanese President Omer al-Bashir and high-ranking government officials. He also paid a one-day visit to Darfur, touring three refugee camps.

Zhai's trip was China's latest efforts to seek a peaceful solution to the Darfur issue.

"China will continue to play a constructive role in helping resolve the Darfur issue," he said.