Objective: We knew that conventional conization can make the incompetent internal os of cervix, which can induce the abortion and preterm delivery. So, we try to minimize the removed volume after conization. Methods: 34 young patients with HSIL ( final diagnosis: CIS or cervical cancer FIGO stage IA1 ) were enrolled in the Department of Obstetrics and Gynecology of St. Vincent\’s Hospital from Jan. 2014 to Aug. 2018. We treated those patients with Hobnail-like shallow Electrosurgical Excision Prosedure(HEEP) of uterine cervix for the treatment HSIL. Results: 4 women experienced 5 pregnancies. 4 of 5 pregnancies were kept more than 34 gestation weeks. Furthermore, all of 5 pregnancies gave healthy live births. Conclusion: HEEP could be considered as a treatment of choice for HSIL.