Pregnant women's health is vulnerable to a variety of environmental and behavioral factors. Air pollution is one of the important environmental factors for pregnant women, and many studies have analyzed its impact on complications during pregnancy. Most of the findings demonstrate that air pollution is associated with the increased incidence of gestational diabetes mellitus (GDM) and hypertensive disorders of pregnancy (HDP). The particles and aerosol contaminants in the air can cause GDM and HDP through inflammation, oxidative stress, and other mechanisms. To control body mass index before pregnancy and supplement trace elements such as folic acid and vitamin D play active roles in preventing complications during pregnancy. In this review, we discussed the effects of various components of air pollutants on complications during pregnancy, hoping to provide references for preventing complications during pregnancy.