Abstract: Objective To explore the effect of vibratory sputum ejection machine on spu-tum ejection treatment of patients with rib fracture.Methods 60 patients with rib fracture were randomly divided into vibratory sputum ejection group and traditional hand knock expectoration group,30 cases in each group.Both groups were treated with the symptomatic treatment of atom-ization inhalation,phlegm,etc.The expectoration volume,the pulse oxygen saturation (SPO2), the Visual Analogue Scale (VAS)of expectoration and the incidence rate of pulmonary complica-tions were observed and compared between two groups.Results Compared with the traditional hand knock expectoration group,the vibratory sputum ejection group had larger expectoration vol-ume,more apparent increase of SPO2 index,lower VAS score and lower incidence rate of pul-monary complications(P <0.05).Conclusion The vibratory sputum ejection machine can reduce the occurrence of pulmonary complications,alleviate patient′s discomfort and reduce nurse′s physi-cal consumption.Since it is superior to the traditional hand knock expectoration on the sputum e-jection effectiveness in patients with rib fracture,it is worthy of clinical popularization.