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接受长期机械通气的儿童近年呈明显增加趋势。营养支持对改善长期机械通气儿童的预后十分重要。目前尚缺乏有关长期机械通气儿童营养支持的相关研究及专家共识或指南。本文结合目前的研究成果，简要总结了长期机械通气儿童营养支持的流程和策略。多学科协作有助改善营养支持的效果。尚需大量高质量研究提供循证医学证据，以制订更加合理规范的营养支持策略。“,”The number of children receiving prolonged mechanical ventilation has increased significantly in recent years.Nutritional support is very important to improve the prognosis of children on prolonged mechanical ventilation.But there is a lack of research, expert consensus or guidelines on nutritional support for children on prolonged mechanical ventilation now.This review summarized the process and strategy of nutrition support for children with prolonged mechanical ventilation based on the current research results.Multidisciplinary collaboration helps improve nutritional support outcomes.A large number of high-quality studies are needed to provide evidences to develop more rational and standardized nutritional support strategies.