Amino acids can be administered in pregnant women at 250 ml per dose if there are indications for amino acid infusion. Amino acids can be infused in pregnant women but the indications for infusion need to be strictly controlled, and it is not recommended to infuse amino acids if they can be supplemented by food or if the pregnant woman is in good condition and there is no need for amino acid infusion. Supplementation of amino acids is actually supplementation of essential proteins for human beings, no matter through medication or supplementation of nutrients, certain principles should be followed, that is, avoiding injections when they can be taken orally, and not using infusion when they can be injected, because intravenous infusion has certain side effects and should be avoided as much as possible. In addition, amino acids, as essential nutrients, should only be given to pregnant women with clear indications. When a pregnant woman has a severe pregnancy reaction, such as severe vomiting, electrolyte disorders, or vomiting and inability to eat resulting in a short-term weight loss of more than 10% of the initial body weight, it is not possible to replenish amino acids orally, so they can be infused for a short period of time. If the pregnant woman’s condition improves and she can eat through the digestive tract, the infusion needs to be stopped in time. Pregnant women are advised to go to a regular hospital for evaluation before taking amino acids, and choose the appropriate dose under the guidance of the doctor before doing so.