It is important to emphasize that the orality period is a psychoanalytic concept and a classical Freudian psychoanalytic concept, and that the meaning of the word orality period should be understood and interpreted within the context of this theory. In psychoanalytic theory, the oropharyngeal period is the period during which the infant individual, from birth to the age of one week, is mainly characterized by exploring the world. It focuses on the mouth and lips, relying on sucking, chewing, swallowing and other actions to obtain some pleasure or satisfaction through oral activities, and is also the most primitive stage of the individual’s psychosexual development, which belongs to the concept in the psychoanalytic theory. It is not recommended for lay people to pursue the meaning of words too much, but to study psychoanalytic theory systematically. Babies like to bite objects during the micturition stage, parents do not have to deliberately stop such behavior. It is necessary to pay attention to hygiene and safety, to prevent the baby from biting dangerous and unhygienic objects, and to try to meet the baby’s oral appetite period.