3-year-old children have a temper problem, there may be the following reasons: 1, there may be a child rebellious period of the problem, because the child to about 3 years old may encounter the first rebellious period in life, this time it is easy to be overly resistant to their parents, demanding self, demanding independence, and even love to say no to their parents, not willing to cooperate with their parents, and even always love to lose their temper, to their parents 2, there may be some personality problems, some children are more sensitive, introverted, also have some stubbornness and radical, easy to get angry, especially self-centered, do not know how to share, can not understand the attitude of others, this time it is easy to appear because of small things on the temper problem. 3, may also be recently encountered some frustration caused by the 3-year-old children, if the game is not to meet the conditions of his If a 3-year-old does not meet his satisfaction conditions, or want to eat snacks parents do not let him eat, play with other children do not take him to play, etc., these frustrations will cause negative defenses, such as aggressive behavior, this time it is easy to become more temperamental.