[目的]调查城市低收入家庭学龄儿童膳食结构及营养状况,为进行营养干预措施提供依据。[方法]采用问卷调查,体格检查及生化检查的方法调查城市低收入家庭学龄儿童营养状况。[结果]家庭经济收入的高低对儿童的膳食结构及生长发育均有影响(P值﹤0.05～0.01)。[结论]为保证低收入家庭儿童健康成长,进行营养干预和营养立法是很必要的。 [Objective] To investigate the dietary structure and nutritional status of school-age children in urban low-income families and provide basis for nutritional intervention. [Methods] The nutritional status of school-age children in urban low-income families was investigated by questionnaires, physical examination and biochemical tests. [Result] The level of family income affected the dietary structure and growth of children (P <0.05-0.01). [Conclusion] To ensure the healthy growth of children in low-income families, it is necessary to carry out nutrition intervention and nutrition legislation.