Objective Discussion on 1923 cases clinical characteristics of children with food intolerance test results,provide guidance for clinical diagnosis,treatment and prevention of diseases.Methods 1923 children (1060 boys and 863 gils,aged from 2 to 12) with HSP who were hospitalized in our hospital from Dec.2010 to Jan 2012 were chosen as research cases.Enzymelinked immunosorbent assay method was applied to detect the serum concentration of 14 kinds of food intolerance specific IgG and IgE.