【Objective】 With questionnaire, physique and mental behavior detection, mental behavior development of infants were investigated, and discussed influence of the supporter to physique development, mental behavior attitude, temperament and psychological characteristics. 【Methods】 300 infants closed through layer cluster sampling method and received questionnaire. Infant psychological health detection was performed according to Achenbach Child Behavior Check List(CBCL), and infant behavior development detection according to Gesell scale. 【Results】 Incidence rate of taking food problem was 29.67%. Compared with combine feeding and artificial feeding, breast feeding showed significant difference. Nine temperament dimensions of breast feeding were all lower than combine feeding and artificial feeding. Gesell five capabilities of parent supporter were all higher than grandparents or baby-sisters supporters. 【Conclusions】 Mental behavior development of infant was closely related with raise and education style. 1~3 years old infants should pay attention to infant mental behavior development and promote children earlier period mental development, which be significant for promoting infants health.