Atypical polypoid Adenomyomas (APA) is a rare benign tumour in uterine. It is would distinguished from well-differentiated endometrial adenocarcinoma because of his histological features. We report 2 cases of 31-year-old and 33-year-old patient whose symptom were abnormal uterine bleeding. The mass was pedunculated with a narrow pedicle connecting to the pedunculated with a narrow pedicle connecting to the cervical; the other was in the uterine prolapse without pedicle. The surgical procedure was polypectomy only in all two patients with hysteroscopy. The histopathology showed the lesions were composed of a proliferation of irregular atypical endometrial glands separated by varying amounts of cellular smooth-muscle stroma. No mitotic activity was observed in the epithelial or mesenchymal elements in APA. The treatment of APA should depend on the age and reproductive desire of patient.