China has enough confidence to ensure that the principle of "one country, two systems" is carried forward in an orderly and steady manner, given its successful implementation in the Macao Special Administrative Region, the country's top legislator said on Tuesday.

The principle is the best solution to maintaining long-term prosperity and stability in the Macao SAR, said Li Zhanshu, chairman of the Standing Committee of the National People's Congress, China's top legislature.

He made the remarks at a symposium on Tuesday in Beijing to mark the 20th anniversary of the implementation of the Macao Special Administrative Region Basic Law. In accordance with the Constitution, the Basic Law has established the institutional arrangements for Macao since it returned to the motherland in 1999.