Infant eating hands and hungry can be distinguished as follows: 1, eating hands when the state, the baby eating hands can be the reason from eating hands when the state of the performance of the distinction, if the baby is only to meet the psychological needs of sucking want to eat hands, in the baby eating hands will show a very enjoyable, is very happy. And the baby hungry want to eat hand different, will show very anxious and even crying. 2, eat hand time, if the baby just to meet the needs of the oral period want to eat hand, will be long time, very satisfied has been in the hand, and the baby if hungry want to eat hand, will show impatient, eat a few times and will take out and short duration, and repeated.