Objective:To compare the difference for diagnosis endometrial polyps using transvaginal ultrasound and hysteroscopy.Methods:Fifty cases of endometrial polyps comfirmed by pathology were analyzed retrospectively.Results:Twenty cases of endometrial polyps were accurately diagnosed by transvaginal ultrasound,while 30 cases did by hysteroscopy.Conclusion:Diagnosis endometrial polyps using hysteroscopy was more accurately than transvaginal ultrasound,but it′s more expensive and complex than that.Transvaginal ultrasound can use chech-up.