呼吸系统疾病是早产儿最常见疾病之一。肺功能测定是判断呼吸系统疾病的病理生理改变、疾病的严重程度 ,鉴别呼吸系统疾病性质 ,评价药物疗效 ,指导呼吸机参数调整的重要手段。本文对 5 0例健康早产儿进行了肺功能主要指标测定 ,希望能为临床提供正常参考值 ,以利于早产儿呼吸 Respiratory diseases are one of the most common diseases in preterm infants. Pulmonary function test is to determine the pathophysiology of respiratory disease changes, the severity of the disease, identify the nature of respiratory diseases, evaluate the efficacy of drugs, an important means to guide the adjustment of ventilator parameters. In this paper, 50 healthy preterm infants were measured the main indicators of lung function, hoping to provide a normal reference value for clinical, in order to facilitate premature infants breathing