The preparations needed for pregnancy preparation include adjusting the environment, adjusting the physical condition, taking folic acid, and health checkups for both men and women. 1. Adjustment of the environment: First of all, the working environment should be adjusted. If there are workers who are exposed to chemical substances or rays, first of all, they should carry out the adjustment of the work type, transfer away from the original work position, and transfer to the work position which is not exposed to chemical substances and rays. If the living environment has just been renovated, you should not live there for the time being. 2. Adjust the state of the body: maintain a happy mood, avoid excessive late nights and excessive mental stress, but also should be appropriate exercise, reasonable adjustment of the diet structure, coarse and fine food with meat and vegetables, eat more seasonal vegetables and fruits, quit smoking and alcohol. 3. Taking folic acid: taking folic acid in the first trimester of pregnancy until the first trimester of pregnancy is aimed at preventing fetal neural tube malformations. 4. Health checkups for both men and women: Before preparing for pregnancy, both men and women should undergo health checkups, including general body checkups, blood and urine tests, ultrasounds, electrocardiograms, and so on. Both men and women should be psychologically and physically prepared before preparing for pregnancy, and only in this way can they conceive healthy and smart babies.