Preparation method of spleen-invigorating and lung-moistening sour pear extract

The invention relates to a preparation method of spleen-invigorating and lung-moistening sour pear extract. Sour pear fruits, black dates, orange peel, fresh gingers, fructus hippophae juice, pinellia ternata powder and crystal sugar are utilized as main raw materials for preparing the spleen-invigorating and lung-moistening sour pear extract; and the main raw materials are respectively treated by corresponding processes, so that the sour and astringent compositions in the main raw materials are effectively removed when the treated materials are used for preparing the sour pear extract; moreover, the treated materials are small in color changes, as well as moistened, transparent and bright in color during the heating and decocting processes. The prepared spleen-invigorating and lung-moistening sour pear extract is stable in characters and long in storage life. The prepared spleen-invigorating and lung-moistening sour pear extract is rich in nutrition, free of sour and astringent taste, and slightly sweet in t