The Chinese activist Chen Guangcheng has landed in Taiwan, after leaving China for the US last year.
Chen is thought to be planning to meet opposition politicians to discuss human rights. China is likely to be angered by the trip to the island, over which China claims sovereignty.
"I am impressed by the success of Taiwan's democracy. Taiwan should be proud of it," he said, saying that democracy was "an important treasure".
Chen was allowed to leave China after fleeing house arrest and seeking refuge in the US embassy in Beijing last year.