The invention discloses a 
medicine composition for treating 
malignant pleural effusion and a preparation method of the 
medicine composition. The 
medicine composition is prepared from the following raw materials by weight: 15-25 parts of 
rabdosia rubescens, 10-20 parts of 
curcuma wenyujin, 5-15 parts of 
brucea javanica, 5-15 parts of radix sophorae flavescentis, 8-12 parts of 
arisaema erubescens, 8-12 parts of poria cocos, 7-13 parts of fructus aurantii, 5-15 parts of glossy 
privet fruit, 12-18 parts of herba epimedii, 7-13 parts of konjak, 12-18 parts of rice sprout, 15-25 parts of 
oldenlandia, 15-25 parts of sculellaria barbata, 5-13 parts of 
paris polyphylla, 7-13 parts of 
centipede, and 2-10 parts of scabrous elephantfoot 
herb; the various materials are extracted with water or ethyl 
alcohol to prepare the medicine composition, the 
chemotherapy is conducted with the medicine composition at the same time, the excellent synergistic interaction effects are achieved, no effect of inhibiting the 
bone marrow is produced, the synthesis of 
RNA and the 
protein is also not affected, the medicine composition has a remarkable effect of inhibiting the adhesion of a vascular endothelial 
cell of a 
neoplastic cell nuclei, directly stimulates pleura to lead to adhesion and 
fibrosis, has the effects of strongly astringing and inhibiting the 
secretion of the pleura, is an effective medicine for treating the 
malignant pleural effusion, and has a huge clinical application prospect.