The prevalence of Toxoplasma gondii infection in the domestic population has been reported to increase with age. The ELISA method has high specificity and sensitivity for the serological diagnosis of Toxoplasma gondii infection in pregnant women, and the IgM antibody test kit is used to detect IgM antibodies in pregnant women after Toxoplasma gondii infection. Toxoplasma gondii is a marker of recent and active Toxoplasma gondii infection. Toxoplasma gondii infection during pregnancy is strongly associated with abnormal pregnancy. The incidence of abnormal pregnancy in IgG-positive pregnant women is not significantly different from that in negative pregnant women. Toxoplasma gondii infection can lead to a variety of congenital defects, such as anencephaly and ophthalmopathy being the most common. Since there is no specific vaccine or effective immunization to prevent Toxoplasma gondii infection, we should actively carry out the prevention and education activities of Toxoplasma gondii and the monitoring of Toxoplasma gondii IgM in pregnant women, which is of great significance for eugenics. If a pregnant woman is infected with Toxoplasma gondii before the fourth to fifth month of pregnancy, a therapeutic abortion should be considered, and those infected in the perinatal period should be actively treated with medication until delivery. Spiramycin is used to treat pregnant women, after taking it, the concentration of spiramycin in the placental tissue is high, and there is no teratogenic effect, the side effects are less and light, the dose: 2~4 grams per day for adults, for congenital infections regardless of their symptoms, should be treated, the use of pyrimethamine and pyrimethamine, also available spiramycin children 500~1000mg per kg per day in 4 doses, after 3 weeks, interval of 1~2 weeks, After 3 weeks, the child can take it again.