BEIJING, April 7 (Xinhuanet) -- China urges the United States to honor its words on the Taiwan issue, including those enshrined in the three Sino-US communiques, a Chinese official said here Wednesday.

China appreciates that US presidents have reiterated time and again that the United States supports the one-China policy, He Yafei, director of the Department of North American and Oceanian Affairs of the Foreign Ministry, said at a news briefing on US Vice President Dick Cheney's China tour next week.

"The Taiwan issue is the most vital and sensitive question amid Sino-US relationship because it concerns China's sovereignty, territory integrity and the feeling of the 1.3 billion Chinese people," He said.

"The one-China policy and the three Sino-US communiques are the foundation of Sino-US ties and I believe the US side clearly understands that," the director said.

The recent declaration of the United States showed that the US side kept its promise, but some words and activities such as the decision to sell weapons to Taiwan violated the US commitment, He said.

US President George W. Bush also said last December that the US opposed any unilateral statements or acts aimed to change the existing situation across the Taiwan Straits, the director said.

But the US Defense Department decided to sell radar to Taiwan, which was against the US promise and sent "wrong signals" to "Taiwan independence" forces, He said, adding that China lodged solemn representation to the US side.

"To maintain peace and stability across the Taiwan Straits is in the common interests of China and the United States," the director noted.

 The election in Taiwan was a local election in China, He said. No matter what the result is, the fact that Taiwan is part of China will never change, He said.