Objective To investigate the effect of artificial beating,rolling machine beating on the patients with chronic obstructive pulmona~ emphysema.Methods Select 90 patients with chronic obstructive pneumonia who were admitted in Punan hospital between June 2009 and May 2012,and randomly divided into artificial beating group (n =30) which received artificial beating in the back,machine beating back group (n =30) which received rolling machine beating (G-5) in the back,and machine beating chest group (n =30)which received rolling machine beating (G-5) in the chest.Then,sputum expectoration effect in all groups such as sputum quantity,sputum viscosity,arterial blood gas analysis indicators and so on were observed.Results Sputum quantity and sputum viscosity in machine beating back group,artificial beating group,machine beating chest group,respectively,were (59.22 18.92) ml and (1.74 ± 0.25),(53.57 ± 6.68) ml and (1.56 ±0.46),(68.85 ± 23.84) ml and (1.90 ± 0.43),and the difference between the three groups was statistically significant (F =5.853,3.129,respectively ;P < 0.05).And significant difference also was found in the oxygen saturation,blood oxygen pressure,heart rate,breath,delay time of suppress out between the three groups (F =3.548,7.254,8.675,5.759,3.984,respectively;P <0.05).Conclusions The effect of machine beating in chest is better than the others,which can reduce the labor intensity of nurses,and improve their nursing quality. Key words: Chronic obstructive pneumonia emphysema; Expectoration ; Artificial beating; G-5 machine beating