Based on CiteSpace, in the field of humanities and social sciences the HETs' main research forces, distinguishing themes, hotspots, and evolution and cutting-edge trends in the last two decades have been analyzed through the collaboration, co-citation and keywords co-occurrence of national and international references. According to the results, on the one hand, HETs have focused on four themes, namely, cognitive enhancement, ethical enhancement, emotional enhancement and human enhancement with convergent technologies; on the other hand, there have been three shifts in these researches: from disease treatment to social examination on human enhancement with convergent technologies, from medical examination of cognitive enhancement to ethical research on moral and emotional enhancement, and from technological research on human enhancement to humanistic assessment on the risks of enhancement technologies with convergent technologies. Such technologies involve a number of disciplines such as medicine, neuroscience, psychology, ethics, sociology, etc. In the future, they will focus on the convergence and innovation among multiple technologies, themes and fields.