Extracted information from medical records of 23839 cases from 12 obstetric and gynecologic hospitals or MCH hospitals are collected，with 10821 cases delivered in November and December in 2012 representing for those before the new fertility policy and 13018 delivered in November and December in 2014 representing for those after the new fertility policy respectively．The size and structure of the two samples of women are compared．The results show that the number of births increased by 20% during November and December in 2014 than in 2012，with a universal increase in hospitals at provincial and prefectural levels．The amount of the second births increased by 62%．The proportion of women who gave birth at 35-year-old or over increased from 6． 4% to 8． 8%，and the proportion of women with a cesarean section history increased from 9.8% to 15．0%． Hospitals at provincial and prefectural levels may need to make or adjust strategies to prepare for the fertility release under the new fertility policy．