Abstract: The growth curves of fruit length and breadth were “double S” shapes in Hwangkumbae pear. Cell division would not stop until about 30 days after blossom, the fruit growing depended on the growth of cell volume mainly when cell stopped splitting. The contents of main nutritional components, including soluble sugar, titratable acid, vitamin C, starch and so on, changed regularly. The content of soluble sugar showed the trends of increasing, titratable acid content declined gradually. The change of Vitamin C was shown as “down-up-down”, starch content as parabola shape. With the development of fruit, the content of soluble solid increased and the fruit firmness decreased.