Objective To explore the anxiety and depressive disorder status of patients with chronic pain. Methods From January 2023 to January 2024， 455 chronic pain patients admitted to the Pain Department of the First Affiliated Hospital of China Medical University were selected as participants. Visual Analogue Scale （VAS）， Generalized Anxiety Disorder-7 （GAD-7）， and Patient Health Questionnaire-9 （PHQ-9） were used to assess patients' pain， anxiety， and depressive disorder， respectively. Spearman correlation was used to analyze the correlation between patients' age， VAS， GAD-7， and PHQ-9 scores. Results A total of 455 questionnaires were distributed， and 407 valid questionnaires were collected， with a valid response rate of 89.45%. According to the International Classification of Diseases 11th Revision （ICD-11） chronic pain classification criteria， patients were divided into 38 cases of chronic postsurgical or post traumatic pain （Group Ⅰ）， 127 cases of chronic secondary musculoskeletal pain （Group Ⅱ）， 18 cases of chronic secondary visceral pain （Group Ⅲ）， 39 cases of chronic secondary headache or orofacial pain （Group Ⅳ）， 71 cases of chronic neuropathic pain （Group Ⅴ）， 89 cases of chronic primary pain （Group Ⅵ）， and 25 cases of chronic cancer related pain （Group Ⅶ）. There was no statistically significant difference in gender and PHQ-9 score among 7 groups of patients （P ＞ 0.05）， but there was a statistically significant difference in age， VAS score， GAD- 7 score， and duration of pain （P ＜ 0.05）. Among the 407 patients， anxiety patients accounted for 60.37% （248/407）， and depressive disorder patients accounted for 67.57% （275/407）. Among the 407 patients， there were 164 cases of mild anxiety， 53 cases of moderate anxiety， and 31 cases of severe anxiety， and there were 132 cases of mild depressive disorder， 89 cases of moderate depressive disorder， 46 cases of moderate to severe depressive disorder， and 8 cases of severe depressive disorder. Among the 7 groups of patients， there was a statistically significant difference in the total score of GAD-7 （χ2 =13.596， P=0.034）， but there was no statistically significant difference in the total score of PHQ-9 （χ2 =5.417， P=0.492）. Correlation analysis showed that VAS scores of chronic pain patients were positively correlated with age， GAD-7， and PHQ-9 scores （r=0.105， 0.210， 0.216； P＜ 0.05）， and GAD-7 scores were positively correlated with PHQ-9 scores （r=0.647， P ＜ 0.05）， and the differences were statistically significant. Conclusions Chronic pain patients have a high incidence of anxiety and depressive disorder， and the severity of anxiety is positively correlated with the severity of depressive disorder.