To study the application effects of Traditional Chinese Medicine (TCM) Comprehensive Geriatric Assessment (CGA) based on constitution identification in elderly care. Methods:A total of 180 cases elderly people in Chengdu Kangxinyuan maintenance center, Chengdu Jingya pension service center, Chengdu Xialingju maintenance of Ecological Park were selected and randomly divided into intervention group, control group and blank group, with 60 cases in each group. All the groups conducted TCM CGA based on constitution identification, intervention group：all the assessment results were released to the evaluated subjects and the caregivers, and the results were adjusted based on the TCM CGA results on the basis of routine medical care; control group：the evaluation results of TCM constitution were hidden, comprehensive intervention based on the evaluation results only on the basis of conventional nursing care; blank group：all the hidden evaluation results, only given routine care. At the time of enrollment, at the 3rd month, the 6th month and the 12th month of enrollment, the effects of intervention were evaluated, and the WHOQOL, ADL scores of 3 groups were compared. The hospitalization rate within 12 months of 3 groups was counted. Results:Compared with the time of enrollment, the WHOQOL score of intervention group at the 3rd month and the 6th month and the WHOQOL scores of the 3 groups at the 12th month significantly increased, and intervention group were significantly higher than that of control group and blank group at all time points (P<0.05 or P<0.01). Compared with the time of enrollment, the ADL scores of 3 groups at the 3rd month, the 6th month and the 12th month significantly increased (P<0.01), and the scores of intervention group at the 6th month and the 12th month were significantly higher than that of control group and blank group (P<0.05 or P<0.01). Compared with the time of enrollment, the systolic blood pressure, TC, TG, FBG of 3 groups and the diastolic pressure of intervention group significantly decreased at 12th month of enrollment, and the above indexes in intervention group were significantly lower than those in control group and blank group (P<0.05 or P<0.01); the systolic blood pressure, TG and FBG levels in control group were significantly lower than those in blank group (P<0.05). The hospitalization rate in intervention group was significantly lower than that of control group and blank group within 12 months (P<0.05 or P<0.01), but there was no significant difference between control group and blank group (P>0.05). Conclusion:TCM CGA based on constitution identification can effectively control the progress of the disease in the elderly, improve their life quality and ability to live, and the application effect is remarkable in the elderly care.