"Seventeen of the 25 suspects were charged with racketeering, four face drug charges and the remainder face charges of murder and smuggling," Xinhua said, quoting Taiwan media.
Police on the mainland have returned 123 criminal suspects to Taiwan since 2000, Xinhua said, citing China's ministry of public security.
But extradition remains a thorny issue between China and self-ruled Taiwan.
Beijing has claimed sovereignty over the island since the end of the Chinese civil war in 1949 and has threatened to use military force if Taiwan makes moves towards formal independence.
Taipei believes that more than 70 mostly white-collar criminals are hiding in China, which allows Taiwan citizens to pass its borders with minimal bureaucracy.