As an emerging auxiliary nursing technology, intelligent robots have demonstrated unique advantages in the care of patients with cognitive impairment.This paper reviews the types, functions and application effects of intelligent robots, systematically analyzes the existing problems such as insufficient policy support, prominent ethical issues, lack of personalized services and excessive economic burden, and puts forward the prospect of constructing systemic human-machine collaborative care models and cross-disciplinary and cross-field linkages, so as to provide references for the nursing practice of cognitive impairment patients.