Abstract: Objective： To investigate the prevalence of the pain in the achilles tendon region among amateur badminton players in Shanghai and analyze the related risk factors. Methods： The investigation examined the prevalence and characteristics of pain in the achilles tendon region in 34 middle-aged amateur badminton players in Shanghai by questionnaire and physical examination. Results： For the middle-aged amateur badminton players under investigation, the prevalence of pain in the achilles tendon region was 41%, 21% respectively in the past 5 years and at present. The pain was generally localized in the middle of the tendon, and the symptoms persisted for 3 weeks-1 year with an average of (101±6.7) d. The prevalence of pain in the achilles tendon was associated with age (P< 0.05), but not with the body mass index (BMI), gender, frequency of movement, and the number of years engaged in badminton. Conclusions： The pain in the achilles tendon is common among middle-aged amateur badminton players in Shanghai, and the prevalence is proportional to age.