Children one year and 10 months can not speak most cases is not normal, need to consider hearing impairment, throat muscle dysfunction or brain development delay, autism and other reasons, mostly need timely treatment. Due to the differences in individual differences, some children may just talk later, which is normal and does not require additional treatment, parents need to do daily communication, daily conversation with the child to promote the child to express. Generally speaking, babies can unconsciously call out “dad, mom” when they are 7 months old, and can call out the names of objects, such as lamps, wrists, hands, eyes, etc., by the time they are 15 months old, they can say a few words and their own names. If the baby is one year and 10 months can not speak, need to consider force disorder, pharyngeal muscle dysfunction or brain development delay, autism and other reasons, need to consult a doctor in time, early diagnosis and early treatment.