Background. Our previous study has shown a satisfactory reproductive outcome resulting from the extremely patient-friendly ovarian stimulation protocol of long-acting follicle stimulation hormone (FSH) plus oral medroxyprogesterone acetate (MPA). The present study was aimed to compare the efficacy of the extremely patient-friendly ovarian stimulation protocol with that of antagonist protocol.Methods. A retrospective study was conducted on normal and high responders aged from 24 to 39 years starting ovarian stimulation for IVF/ICSI with long-acting FSH at early follicular phase in a tertiary fertility center in Taiwan between December 2016 and August 2017. To prevent premature luteinizing hormone (LH) surge, oral MPA was applied in some cycles (group 1), whereas antagonist protocol was applied in other cycles (group 2). Freezing all embryos was applied to all patients in both groups. Duration of stimulation, number of shots and visits before trigger, incidence of premature LH surge, number of oocytes retrieved, fertilization rate, cleavage rate, rate of good embryos available, incidence of ovarian hyperstimulation syndrome, cumulative clinical pregnancy rate, and cumulative live birth rate per retrieval were compared between groups. Results. One hundred and ten cycles of IVF/ICSI were included, among which there were fifty-seven cycles in group 1 and fifty-three cycles in group 2. Starting with long-acting FSH, group 1 (MPA) required much fewer injections and visits but had comparable reproductive outcomes to those in group 2 (antagonist protocol).Conclusions. Long-acting FSH plus MPA use for ovarian stimulation is extremely friendly for the patients and demonstrates satisfactory stimulation and reproductive outcomes that are comparable to those of antagonist protocol.