To explore the clinical diagnostic value of colposcopy in cervical diseases. 82 suspected cervical disease patients admitted to our hospital from February 2011 to February 2013 were selected for retrospective analysis of their clinical data diagnosed using colposcopy. After colposcopy examination, 60 patients were found to have cervical diseases, including 4 cases of genital warts, 10 cases of cervical polyps, 6 cases of cervical cancer, 34 cases of cervical precancerous lesions, and 6 cases of cervical submucosal fibroids; According to pathological examination, 73.2% (60/82) of patients with cervicitis have a high coincidence rate. The application of colposcopy in clinical diagnosis of cervical diseases has a significant effect, improves the diagnostic accuracy, and is worthy of widespread use and promotion in clinical practice.