The Czech Republic is part of integrated domestic market of the European Union and it is abided by rules of the Common agricultural policy for the common organization of the market for single sectors of commodities in case of agrarian products. All Czech commodities have free access on the whole territory of domestic market of the European Union without the tariff and non-tariff barriers. It was abolished the customs procedure, the proving of the origin and the founding of bonded warehouse and the paying of licence fee and charges for certification. The Czech farmers (vine-growers) can operate in stabilized business environment on the basis of definite rules of economic competition.The Czech Republic within a regulation of an agrarian trade must manage common regulations of a horizontal character and vertical regulations for the sectors of commodities after the integration into the EU. The regulation is executed through the common organization of the market. The common organization of the market in wine is based on three principles – regulation of the supply, regulation of the wine quality and regulation of the market.These rules are concerned with domestic market, when the commodities move within European Union and within foreign trade, when commodities are transported a frontier. The regulation of external agrarian trade, which is concerned with conditions of import and conditions of export, is executed through the so-called trade mechanisms. The import licence and export licence, export aid and guarantee belong among these mechanisms of regulation. The intervention purchases, sales, support of private storage and so on belong among basic tools of regulation of domestic agrarian market.The paper is focused on an analysis of the problems of the common organization of the market in wine and its impact on the wine-growing industry in the Czech Republic.