With the intensification of aging,the issue of old-age care has become the focus of society.The design of pension space is directly related to the quality of life and mental health of the elderly.As a very expressive visual language in interior design,color's healing effect is crucial to creating a comfortable and harmonious retirement space.This paper aims to explore the application of color in the design of elderly care space,analyze the impact of different colors on the psychology and physiology of the elderly and actual cases,and provide new ideas and methods for the design of elderly care space through in-depth research on the application of color healing,and promote the implementation of the concept of healthy aging.