Serious disharmony in family relations: parents of ADHD children have more marital problems than parents of normal children, and family members lack trust and support. It is easy to lead to conflicts and lacks an intimate, relaxed, positive and healthy family environment. Children live in an environment where parents often quarrel, abuse each other, attack, satirize each other, and even separate and divorce. Their spirits are often in a state of tension, depression, fear, anxiety and contradiction, and they are prone to abnormal nerve excitability and dysfunction. It is difficult to control yourself, which leads to behavioral problems such as impulsive hyperactivity, inattention and emotional instability, or aggravates some symptoms of ADHD. Biederman and others found out. The family cohesion, emotional expression and organization of ADHD children are lower than those of normal children, suggesting that the disharmony of family environment is an important factor leading to various bad behaviors of ADHD children.

(2) Parental education model

Improper education is one of the risk factors of ADHD. Parents often beat and scold their children rudely and interfere with their activities, which greatly dampens their self-esteem and self-confidence. Under the direct influence of this kind of education, children are often on high alert for fear of offending their parents. In the long run, children will lack independence and autonomy. If the conditions are right one day, you will vent your psychological energy out of control. Behavioural problems such as hyperactivity, inattention and impulsiveness, and laissez-faire education. Although children can develop freely and are not bound, they lack proper care, love and discipline. In addition, children's nervous system function development is imperfect, and their cognitive ability and self-control ability are poor, which may also be the trigger factors of ADHD.

This study also shows that parents of ADHD children often refuse, overprotect and lack warmth when raising their children. Huang Zhimin's research shows that the detection rate of ADHD children with different parental education methods is significantly different, and the detection rate is intervention, doting and strict education methods in turn. Jin Xingming and other studies have found that parents have a bad reaction pattern to ADHD children, and the proportion of parents who scold and beat children with ADHD is as high as 37.8%. These children seldom get encouragement, praise and comfort from their parents, and their parents' rude behavior encourages their stubbornness and contempt, causing tension between parents and children, forming a vicious circle and aggravating ADHD behavior symptoms.

(3) Parents' socio-economic class

Parents' low economic class (including parents' educational level, parents' occupation and economic income) is an important influencing factor of ADHD. In foreign countries, socio-economic class, as a comprehensive index, discusses the influence of socio-economic level on different healthy people. It is found that low family income, crowded housing and poor learning environment are all risk factors for ADHD. Patent research found that. The socio-economic status of the family is related to the secondary symptoms of ADHD, such as aggressive behavior, impulsive destruction and lack of self-esteem. Hong Junfeng and other studies have found that children whose mothers are "primary school" or "illiterate" have 56 times and 9.0 times higher risk of ADHD than children whose mothers are "universities". Children whose mothers are "workers or farmers * individuals" have 4.0 times and 9.0 times higher risk of ADHD than those whose mothers are "technical cadres".

Epidemiological investigation also shows that the educational level and occupation of parents are related to the detection rate of ADHD. Parents' educational level and occupation directly affect their ways of training and educating their children. Parents themselves don't pay attention to improving their cultural literacy and adopt a laissez-faire attitude towards their children's learning. Their children often lack pursuit of learning and lack of norms in behavior. Become a risk factor for ADHD. Therefore, parents should improve the cultural quality of themselves and the whole family. Usually, mothers have more time to contact their children than fathers. It has a great influence on children, so we should pay attention to improving the quality of mothers and creating a harmonious and healthy family environment for children's psychological development.