Walking is the most suitable exercise for pregnant women. On a country road with flat road, beautiful environment and fresh air, a pregnant mother walked slowly accompanied by her husband, chatting and heart-to-heart while looking at the natural scenery. In fact, walking is the most suitable exercise for pregnant women. It can improve the nervous system and cardiopulmonary function and promote metabolism. Rhythmic and calm walking strengthens the activity of leg muscles, abdominal wall muscles and heart muscle.