Premier Li Qiang on Wednesday said Beijing would continue to fully implement the One Country, Two Systems policy and have the two SARs administered by patriots.
Delivering his annual work report at the Great Hall of the People, Li said the central government supports Hong Kong and Macau in improving their economies and livelihoods of the people.
"We will support Hong Kong and Macau in growing their economies, improving the lives of their people, and deepening international exchanges and cooperation," the report said.
"We will ensure that Hong Kong and Macau better integrate themselves into China's overall development and maintain long-term prosperity and stability."
On Taiwan, Li said China resolutely opposes "Taiwan independence" and external interference, to promote the peaceful development of cross-strait relations.
"We will improve institutions and policies for promoting economic and cultural exchanges and cooperation across the Taiwan Strait and advance integrated cross-strait development to improve the well-being of Chinese people on both sides," the report said, adding that China will firmly advance the cause of reunification.
The premier also said that Beijing is ready to work with the international world to promote a community with a shared future for mankind.