During the preparation for pregnancy, men should strengthen nutrition, moderate exercise, regular work and rest, maintain the mood, regular checkups, can better adjust the physical state, improve the quality of sperm. 1. Enhance nutrition: In life, you should balance the intake of all kinds of diet, avoid picky eating, partiality of bad eating habits. 2. Moderate exercise: Active physical exercise, such as running, swimming, hiking, etc., can to a certain extent promote the body’s metabolism and enhance the body’s immunity. 3. Regular work and rest: maintain sufficient sleep, regular work and rest, avoid staying up late and other bad habits. 4. Maintain mood: Keep your mood stable, avoid tension and anxiety. 5. Regular checkups: Go to the hospital for regular checkups to clarify your physical condition. Abnormalities are easy to deal with in a timely manner. In addition, during the preparation for pregnancy, you should quit smoking and drinking, and avoid too frequent sex. There are individual differences between different men, specific precautions, can be in the professional medical institutions for consultation, it is recommended to follow the doctor’s advice.