Pregnancy sunshine is good for the fetus. After pregnancy, women’s demand for various nutrients will increase due to the growth and development of the fetus, and the demand for calcium will also increase. Regular sunbathing can promote the absorption of calcium, increase the blood calcium level of pregnant women, and promote the growth and development of the fetus, and frequent walks in the sunlight can also make women feel good and reduce the phenomenon of low mood during pregnancy. When women are in a good mood, the fetus can survive in a good internal environment, which is beneficial to the growth and development of the fetus. Regular participation in outdoor exercise can also promote the peristaltic function of the gastrointestinal tract, increase the digestion and absorption of food, increase appetite and reduce the symptoms of constipation. Good and balanced nutrition for pregnant women is a guarantee of normal fetal growth and development, but do not sunbathe at noon when the sun is full to avoid sunburn, it is better to sunbathe in the morning and evening when the sun is not very full.