Abstract: Objective: To understand the physical activity level of lung cancer survivors after 1 month of discharge,and analyze its influencing factors. Methods: A total of 118 lung cancer patients were selected as the research subjects.After 1 month of discharge,the international physical activity short questionnaire (IPAQ-SF) was used to assess the physical activity level of patients.The general information,and scores of health behavior capacity scale(SRAHP),cancer fatigue scale and respiratory questionnaire were collected to analyze the influencing factors of the patients' physical activity level. Results: Among the 118 lung cancer survivors,15 cases (12.71%) had a high level of physical activity,24 cases (20.34%) had a moderate level of physical activity,and 79 cases (66.75%) had a low level of physical activity.The patients were divided into the lower level physical activity group(low physical activity) and higher level physical activity group(moderate and high-level physical activity).The results of univariate analysis showed that the differences in the age,monthly family income,educational level,combined chronic obstructive pulmonary disease,smoking,SRAHP grade,and scores of dyspnea,physical fatigue,cognitive fatigue and emotional fatigue were statistically significant between two groups(P<0.05 to P<0.01).The results of logistic regression analysis showed that the educational level,dyspnea,SRAHP grade,physical fatigue and cognitive fatigue were the independent influencing factors of physical activity level in lung cancer survivors(P<0.05 to P<0.01). Conclusions: There is a deficiency in physical activity among lung cancer survivors.Emphasis should be placed on providing health behavior and lifestyle education to lung cancer survivors.Attention should be paid to the breathing difficulties and fatigue levels of patients during activities.Obstructive factors should be actively reduced and reinforcing factors increased to promote the improvement of physical activity levels among lung cancer survivors.