Generally speaking, the causes of children’s poor memory include the following situations. The first is due to children suffering from sinusitis caused by the symptoms, after suffering from sinusitis will cause the mind is not very refreshing, memory will also appear to decline, attention is often distracted. Secondly, children suffering from adenoid hypertrophy caused by the symptoms, in children suffering from adenoid hypertrophy will cause chronic hypoxia, which will also affect the memory, we need to give the children timely application of tonsil removal surgery to relieve. In addition, it is due to the symptoms caused by the children excessive late night, if the children usually stay up late at night for a long time, often also cause brain fatigue, and then cause memory loss.