1, ultrasound monitoring follicular development can timely and accurately diagnose ovulation disorders In the regular menstrual cycle of women, through ultrasound, statistics have 15%-40% of the cycle follicular development and ovulation abnormalities, if repeated and continuous follicular development and ovulation abnormalities, can be diagnosed with ovulation disorders caused by women infertility, ovulation disorders caused by infertility usually accounted for about 25% of infertility. 2, drug ovulation cycle ultrasound monitoring of follicular development can grasp the effect of ovulation on the follicular development abnormalities without ovulation can be ovulation treatment, the establishment of a normal ovulation of the menstrual cycle and improve the conception rate. Drug therapy is the most effective method of ovulation induction and has been widely used in clinical practice. Clomiphene is one of the most commonly used ovulation-promoting drugs, which has an estrogen-like structure, acts on the hypothalamus-pituitary, competes with estrogen for binding receptors, and blocks the negative feedback effect of endogenous estrogen, which increases the levels of FSH and LH and stimulates follicular development. Literature reports that the rate of ovulation promoted by clomiphene is 72%-76%. The monitoring of follicular development and ovulation process is the key to the success of the treatment of follicular development and ovulatory disorders of infertility, the application of continuous ultrasound monitoring, combined with ultrasound image characteristics can determine the maturity of the follicle as well as to clarify whether or not ovulation has occurred. The application of ultrasound to dynamically observe follicular development can accurately predict the time of ovulation and guide the clinical use of medication, and the timely application of HCG to promote follicular rupture and ovulation, preventing follicular atresia or overripening and aging, and difficulty in ovulation. When follicles are overdeveloped and large, and the ovary is enlarged significantly, clinicians should be prompted to cautiously use or not to use HCG, in order to prevent the emergence of serious complications of ovarian hyperstimulation syndrome. The clinician should be advised to use HCG cautiously or not to use HCG in order to prevent the emergence of severe comorbid ovarian hyperstimulation syndrome. According to the reliable information provided by the ultrasound, the clinician should guide the conception, grasp the chance of conception, and improve the success rate of treatment. The value of ultrasound monitoring in the treatment of infertility caused by ovulation disorders lies in its ability to provide clinical follicular development and maturation and ovulation process, and clearly understand the dynamic changes of the ovary in the process of treatment, which is of great significance in understanding the effect of treatment, reducing the comorbidities of treatment, guiding the conception, and guiding the timing of clinical use of medication, etc. Moreover, ultrasound has the advantage of providing reliable information to guide the conception and improve the success of the treatment. Moreover, ultrasound has the advantages of simplicity, non-invasiveness, intuition, precision, reliability, repeatability, etc. It has important value and can be the first choice for clinical use.