〔Abstract〕 To evaluate the pregnancy outcomes of assisted reproductive technology（ART）in women with a history of thyroid cancer who retained fertility intentions after completing cancer treatment. Methods A ret- rospective analysis was performed on 61 patients with a history of thyroid cancer who underwent in vitro fertilization/ intracytoplasmic sperm microinjection and embryo transfer（IVF/ICSI-ET）. These patients were included as the case group. A total of 122 non-cancer patients who received ART during the same period were selected as the con- trol group using 1 ∶2 matching based on age and oocyte retrieval time. Baseline characteristics，outcomes of the first ART cycle，and cumulative pregnancy outcomes were compared between the two groups. Results There was no significant difference in the basic data，the total amount of gonadotropin（Gn）and the days of use between the case group and the control group（P>0. 05）. However，the case group had significantly fewer retrieved oocytes， mature oocytes（MII），lower fertilization and cleavage rates，and fewer transferable and high-quality embryos，as well as fewer embryos transferred during the first cycle（P < 0. 05）. However，there was no significant difference in the rate of first embryo implantation and first clinical pregnancy between the two groups（P>0. 05）. In the analy- sis of cumulative outcomes，the two groups did not show statistically significant differences in the cumulative preg- nancy rate，clinical pregnancy rate per transfer cycle，the number of oocyte retrieval cycles required per live birth， the number of embryo transfer cycles required per live birth，and the number of embryos used for each live birth（P >0. 05）. However，the cumulative live birth rate was significantly lower in the case group compared to the control group（P=0. 005）. Conclusion After treatment for thyroid cancer，when ART is used to help pregnant women， the pregnancy outcome is comparable to that of women without tumors. Individualized reproductive management and timely fertility preservation strategies are recommended to optimize reproductive outcomes in this population.