A nine-day low fetal weight at thirty-five weeks of pregnancy can be facilitated by choosing more nutritious foods in moderation and increasing the protein diet to favor fetal growth. Women in the thirty-fifth week of pregnancy, due to the mother’s nutritional deficiencies or comorbidities during pregnancy, caused by poor fetal development, resulting in low weight. At this time, it is necessary to eat more eggs, milk, lean meat and other foods appropriately, which can replenish protein, amino acids and other various nutrients. It can better alleviate the situation of small fetus and can accelerate the growth of the fetus Pregnant women during pregnancy, in addition to eating more food rich in protein, but also need to properly supplement shrimp, fish, liver, oats, walnuts, peanuts and other foods, eat more fresh vegetables and fruits, to ensure that the intake of food nutritionally balanced, to avoid a single nutrient. But pregnant women should also pay attention to avoid high sugar, high fat, high salt and other food intake, control the growth rate of pregnant women and fetus, can not grow too much, otherwise it is not conducive to the health of the fetus. If the thirty-fifth week of pregnancy check to the small size of the fetus, you should go to the hospital in time, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.