Abstract:In order to promote the formation and improvement of the quantifiable evaluation mechanism of outdoor plant landscape from the perspective of health in China, the health benefits of plants, which are widely existed in healthy landscape and common plant landscape, are summarized. Starting from the influence mechanism of plant landscape on human physical and mental health, this paper analyzes the composition of health elements in the outdoor landscape environment, deeply explores the action mechanism of plant landscape and the physical and mental health of the elderly, and preliminarily constructs the evaluation index system of age-appropriate outdoor plant landscape based on the health benefits of plants.