The invention discloses a pharmaceutical composition for treating acute 
lung injury and belongs to the technical field of 
biopharmaceutical industry. The pharmaceutical composition comprises the following main components in parts by weight: 20-25 parts of 
puerarin, 0.2-0.4 part of 
verapamil, 1-2 parts of 
ulinastatin, 0.6-0.8 part of an NE inhibitor, 0.3-0.6 part of a salviae miltiorrhizae water extract and 0.4-0.8 part of 
glutamine. The invention provides the pharmaceutical composition for treating acute 
lung injury. By means of matched use of 
puerarin and 
verapamil, the pharmaceutical composition can effectively treat acute 
lung injury and inhibit rise of content of 
blood serum TNF-alpha, alleviate PMN infiltration, eliminate free radicals and alleviate the extent of 
lung tissue edema, and has an effective protecting action on acute 
lung injury; and moreover, the 
oxygenation index of arterial 
partial pressure of 
oxygen is obviously increased, and the 
respiratory function of a patient is improved. The pharmaceutical composition disclosed by the invention not only can treat acute 
lung injury effectively, but also plays a maintaining role on lungs, and is convenient to use and low in cost.