The invention discloses a Chinese herba preparation for treating chronic pancreatitis. According to traditional Chinese medicine, the chronic pancreatitis belongs to the category of stomachache, splenic precordial pain, diarrhea and the like. Damp-heat, Qi stagnation, blood stasis and phlegm accumulation are generated by the discord of the spleen and the liver and weakness of the spleen and the stomach, and as a result, durability inflammatory lesion occurs to pancreas. For this purpose, traditional Chinese medicine cynanchum thesioides, bitter bamboo leaves, cassia nomame, ginseng fruit, common hawksbeard, lespedeza cuneata G. Don, atractylodes, arundina graminifolia, haloragis micrantha, prunella vulgaris, black pepper and liquorice are selected, and decocted with water into decoction. Clinical tests show that the total effective rate reaches 97.5%, and the curative effect is remarkable.