Ovulation is the key to a woman\’s reproductive cycle. Women\’s body structure determines their ability to give birth to new life, and ovulation is the key to a woman\’s reproductive cycle. In order to understand the relevant knowledge of ovulation period in detail, this article will elaborate on it from four aspects, namely the concept of ovulation period, the importance of ovulation period, how to accurately judge ovulation period, and how to improve the fertility of ovulation period.