Abstract: Human intelligence can make adaptive decisions according to current environment when performing tasks, and is capable of thinking and emotional awareness. Artificial intelligence can make high performance computing instead of humans. However, increasing demand makes environments and tasks become more complicated, thus human intelligence or artificial intelligence alone is unable to perform complex tasks. Human-robot collaboration intelligence system is a novel technology based on hybrid intelligence, which can perform complex tasks in high-dynamic environment. It is the extension and expansion of human behavior and intelligence to realize the complementary advantages. In this paper, the main human - robot collaborative intelligence system and its theory are summarized. And then, the clinical applications of typical human - robot collaborative intelligence system is analyzed. Finally, this paper prospects the research trends of human-machine collaborative intelligence systems.