Abstract: Objective To describe the current status of advance care planning（ACP） readiness in emergency frail elderly patients in a tertiary class A hospital in Shanghai and to explore its influencing factors. Methods Advance Care Planning Readiness Scale,the General Information Questionnaire,the Chinese version of the FRAIL scale,and the Apprehension Social Support Scale were used as survey instruments to investigate 157 emergency geriatric frail patients in a tertiary class A hospital in Shanghai. Multiple linear stepwise regression was used to analyze the influencing factors of ACP readiness. Results The total ACP readiness score was（80.38±9.75） among 157 elderly frail patients,of which the scores of attitude,belief,and motivation dimensions were（33.59±7.14）,（19.34±3.42）,and（27.46±4.17）,respectively. Highest education,health care payment method,duration of illness,willingness to treat,social support,and objective support were statistically significant in the univariate analysis. Multivariate analysis showed that highest education,duration of illness,and willingness to treat were factors influen-cing ACP readiness in elderly frail patients in the emergency setting（P<0.05）. Conclusion Advance care planning readiness in the group of emergency frail elderly patients is generally moderate to high. Healthcare professionals should facilitate the expression of their end-stage care needs by developing proven intervention strategies.

Key words: Frail Elderly, Emergency Service, Hospital, Advance Care Planning, Readiness