Chateau Grand-Puy-Ducasse is located in the village of Pauillac in Bordeaux. In 1855, Chateau Grand-Puy-Ducasse was entitled the Cinquieme Crus in the 1855 Bordeaux Classification System.
 The history of Chateau Grand-Puy-Ducasse and its twin winery, Chateau Grand-Puy-Lacoste, dates back to the ancient medieval estate named the Grand Puy in the ownership of Mr. Guiraud in northern Pauillac. After his daughter married a gentleman called Dejean, the majority of the estate vineyards and the nearby Lynch-Bages fell to the hands of Dejean. In 1750, Deschamps gave some of his vineyards later appropriated to his creditor, Pierre Ducasse, which was often regarded as the beginning of the history of Chateau Grand-Puy-Ducasse. And the rest of the vineyard inherited to his daughter became today’s Chateau Grand-Puy-Ducasse. In the following years, the winery changed hands for several time. Ultimately, Chateau Grand-Puy-Ducasse was purchased by Credit Agricole for 95 million euros which is a well-known French consortium with over 400 hectares of vineyards.
 In the vineyards, the surface of soil is dominant by gravel and the bottom limestone. Cabernet Sauvignon accounts for 60% of the total plantation area, Merlot for 40%. At the end of the 20th century, the winery also introduced stainless steel barrels, and adopted handpicking together with fermentation in stainless barrels. Skin contact lasts for less than three weeks and pumping is carried out twice everyday. At the end of the fermentation, the wine is matured in oak barrels (up to 40% of the oak barrels will be replaced each year) for up to 18 months.
 Chateau Grand-Puy-Ducasse produces two series of wines which are Chateau Grand-Puy-Ducasse and Prelude a Grand-Puy Ducasse with respective annual production reaching 18,000 cases and 2,000 cases. signature wines are Chateau Grand-Puy-Ducasse. The best years for the wines produced are 2000, 2003 and 2005.