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目的：研究巨大儿的生长发育模式，为健康干预措施提供依据。方法将昆山市1998年1月1日～2006年6月30日出生，出生体重4,000g的2,548例新生儿作为研究对象，回顾性随访其体重、身长和头围等指标，并以足月正常体重儿（2,500g＜出生体重4,000g，37周胎龄＜42周）作为对照组；随访时间为：出生时、42d、3个月、6个月、9个月、12个月、18个月、24个月、30个月及36个月。结果巨大儿组各生长发育监测点的体重、身长、头围均值均大于正常出生体重儿组，但生长有向对照组回归的趋势。与正常对照组相比，42d时，巨大儿组身长及头围曲线出现增长峰值，反映了小儿在出生后3个月内快速增长的基本规律；但体重曲线未出现峰值，说明在正常喂养情况下，宫内营养充足产生的巨大儿，高出生体重导致其体重增长速度呈小于正常出生体重儿的趋势。结论巨大儿因胎儿宫内过度生长，出生体重过重，婴幼儿期的生长模式与正常出生体重儿有所差别，因此巨大儿应在婴幼儿期（特别是在婴儿期），加强正确的喂养指导，防止体重过快增长。“,”Objective To study the growth patterns of the macrosomic infants and to provide the basis for application of intervening measures.Methods 2,548 macrosomic infants living in Kunshan,born on January 1st,1998~June 30th,2006 were enrolled.Their physical conditions,i.e. weight,length and head circumference were observed at birth,42 days and 3, 6, 9, 12, 18, 24, 30, 36 months of age and compared with full-term normal birth weight infants of same period.Results Macrosomic infants were higher than control subjects in weight,length and head circumference through 3 years.But it also shows that trend of growth among macrosomia is center line returning.Conclusion The intervention and instruction must be reinforced according to the feature of physical development in macrosomic infants.