For pregnant women, the baby in the abdomen to the outside world toxic, harmful substances are more sensitive, in order to be prudent, pregnant women should avoid the application of electric mosquito coils. If pregnant women apply electric mosquito coils, there is no need to be nervous, anxious, because qualified production of electric mosquito coils are not harmful to people, the application of electric mosquito coils should pay attention to the observation of the baby’s fetal movement, if the fetal movement and the previous about the same, indicating that the impact on the baby is not great, it is recommended to open the window to maintain air circulation, to avoid electric mosquito coils on the pregnant woman as well as the baby to have an adverse effect on the baby and regularly do the maternity examination to understand the development of the baby’s condition. Prevention of mosquito bites on pregnant women, advocating the application of barrier mosquito repellent methods, through the indoor hanging mosquito nets or curtains, to avoid mosquito bites, physical methods are simple, safe, reliable, and will not have any toxic side effects.