Pregnant women must have a card, which can identify whether the pregnant woman has a special medical history, any pregnancy complications and risk factors, assess the risk level of the pregnant woman and upload it to the maternal and child information system. In each midwifery institution, pregnant women can see whether they have any risk factors during pregnancy checkups, so that they can be managed in a focused manner for critically ill pregnant women, especially those with orange or red risk levels, and can receive timely multidisciplinary joint treatment. The community hospital can get the information of pregnant women after the health card of pregnant women, and can urge them to do maternity checkups in time. The information of pregnant women after the card is built needs to be recorded in time during pregnancy checkups, and the health information of babies after birth should be filled in until the babies are six years old.