[Abstract] Objective:To study the prevention of furosemide and Sodium Aescinate against Acute pulmonary edema . Method: 9 white rabbits were randomly divided into 3 groups – 3 rabbits per group .The first group was the pathological models.The other two groups were respectively treated by injecting iv 8 hours and iv furosemide before making pathological models.Creat pathological models by injecting iv 0.9%NaCl,100ml/Kg,first and then iv 0.2%epinephrine,0.9ml/Kg at once. Compare the change of rabbits’breath rat and the weight of their lungs after their death of different groups.Results:There were significant difference between the pathological model group and the latter two groups.Conclusion: Sodium Aescinate and furosemide have good effects on prevention .