Objective To analyze the misdiagnosis of endometrial polyps. Methods The basic data in this study came from 70 patients with endometrial polyps diagnosed and treated in our hospital from March 2021 to June 2022. The diagnostic scheme is unified as ultrasonic diagnosis. The results of diagnosis were recorded,the rate of missed diagnosis and misdiagnosis were calculated, and the phenomenon of missed diagnosis and misdiagnosis was analyzed. Results According to the evaluation of diagnostic data,the missed diagnosis rate,misdiagnosis rate and detection rate were 8.57%, 15.71% and 75.71% respectively. Conclusion Ultrasonic diagnosis technology has obvious diagnostic value in the diagnosis of endometrial polyps, but attention should be paid to avoid the occurrence of missed and misdiagnosis during the diagnosis so as to improve the detection rate of clinical diagnosis.