Coenzyme Q10 is clinically effective in improving egg quality. Coenzyme Q10 can play a role in promoting oxidative phosphorylation, protecting the structural integrity of biological membranes, and is an important substance that promotes cellular respiration and metabolism, enhancing the body’s immunity. Taking a dose of Coenzyme Q10 during pregnancy preparation can increase the chances of pregnancy, improve the quality of eggs, reduce the peroxide around the eggs, and reduce the probability of spontaneous abortion. It is recommended that pregnant women of advanced age take Coenzyme Q10 under the guidance of a doctor to improve the energy of the eggs and promote a better pregnancy. It is recommended that women during pregnancy preparation pay attention to rest and take appropriate physical exercise to improve the quality of their body and ensure the quality of their eggs, eat a diet rich in protein and maintain a good state of mind.