Objective To analyze the effect of introduction of complementary foods on dietary behaviors of children after one year of age. Methods A total of 189 children aged 1～5 years old having physical examination in Wuxi Maternal and Child Health Care Hospital were recruited in the study,the general situation,eating behaviors and the situation of complementary foods during the infant periods were surveyed by questionnaire,the influence factors of dietary behavior were analysed by Logistic multiple regression. Results The children with eating behavior problems were 30.69% in the total of 189 research objects.Secondly,special preference for certain food,poor appetite and afraid of eating respectively were 26.98%,21.69% and 6.35%.The distribution was no statistical difference in four kinds of eating behavior problems among different age and gender groups.The time of introduction of granular food during the infant period impacted on the appetite of children after one year of age(P<0.05),the value of OR was 1.305; The frequency of introduction of granular food during infant period affected special preference for certain food after one year of age(P<0.05),the value of OR was 0.610;The time and frequency of introduction of different characteristics,food quantity and acceptance to complementary food did not affect the incidence of eating behaviors and afraid of eating after one year of age(P>0.05). Conclusion Introduction of complementary food at the right time may be reducing the incidence of dietary behavior problems with poor appetite and dietary bias.