Objective Infantile eczema are possibly related to the feeding patterns and mother's dietary structure.The study in this paper is to investigate the relationship between them and evaluate the effect of diet intervention in breast feeding mother whose baby with eczema. Methods Infants were divided into 2 groups according to their feeding patterns:simple artificial feeding group and simple breast feeding group.In the simple breast feeding group,mothers were also divided into 3 levels according to their dietary structure.Mothers who ate a lot of allergenic food a day might get a dietary intervention.Prevalence rate of eczema was investigated and analyzed in each step. Results Simple breast feeding group had a higher eczema morbidity than simple artificial group(P＜0.05).The more allergenic food the mother ate,the higher occurrence of eczema of their babies(P＜0.001),which showed a positive correlation(r=0.36).The occurrence of eczema dropped significantly compared to the non intervention group(P＜0.001). Conclusion Mothers who are eating allergenic food is considered to a risk for infant's eczema. Food intervention is an effective method to reduce the prevalence rate.