Objective To develop and validate an Exercise Avoidance Scale For Patients With Chronic Obstructive Pulmonary Disease (COPD), and to provide a reliable measurement tool for clinical assessment of patients′ exercise avoidance levels.Methods Based on the framework of Attitude Theory, a pre test version of the scale was developed through literature review, qualitative interviews, expert consultations and pilot surveys.A total of 537 COPD patients were surveyed, and items were screened using item analysis.The scale was further evaluated through reliability and validity tests to form the final version.Results Combined the exploratory factor analysis results with the Attitude Theory, the scale was divided into 3 dimensions, comprising 18 items, with a cumulative variance contribution rate of 73.928%.Confirmatory factor analysis showed that χ2/df=1.868, RMSEA=0.057, GFI=0.904, NFI=0.903, CFI=0.952.The overall Cronbach′s α coefficient of the scale was 0.950; test-retest reliability was 0.921, and the scale-level content validity index was 0.952.Conclusion The Exercise Avoidance Scale for Patients with COPD has good reliability and validity and can be used to assess the exercise avoidance levels of this patient population.