In recent years, along with the divorce rate rise, single-parent family's quantity day by day increased, thus had the divorce single-parent family baby's psychological behavior question more and more to be also many.In the divorce single-parent family baby's psychological behavior question performance for lies, the attack sex act, nips the nail and sucks the finger and so on, these behaviors will be able to have the influence to the baby, at present, must analyze the reason which these questions will produce, will solve these problems, and from the family, the school and the society will unify.