In 2006 year the experiment on the organic and conventional tomato has been carried out in Organic Foodstuffs Division. Four tomato cultivars have been used in the study: three standard tomato cultivars (Rumba, Gigant and Kmicic) and one cherry tomato cultivar Koralik. Tomato plants were cultivated in two certified organic and conventional private farms in Mazovia region. The fertilization and plant protection in the experimental farms have been organized according to the organic and conventional faming rules. The samples of the ripe tomato fruits have been collected and chemically analysied. The results obtained showed that the content of nutritive compounds such as total and reducing sugars and bioactive compounds such as vitamin C, beta-carotene and phenolic acids was significantly higher in tomato fruits from organic than conventional cultivation. The second experiment was carried out on tomato juices that have been prepared from the organic and conventional tomato fruits. The results obtained showed that most of the sensory attributes of the tomato juices and overall sensory quality have been evaluated much better when tomatoes have been grown in the conventional farms.