The rules of organic fruit production are a very strict. Only natural fertilizers and plant protection products are allowed. Fruit produced by organically way are characterized by a higher content of biologically active compounds in comparison with conventional one. The consumer prefer sweet cherry fruits due to their pleasant taste and the pro-healthy properties. Sweet cherry fruits are a very good source of phenolic compounds in our diet. In cherries, especially those with dark colour you can find also the anthocyanins valuable for the health. In the experiment four varieties of cherries were used: Regina cv, Kordia cv, Hedelfińska cv, Bütnera Red cv. from organic and conventional production. In the fruit dry matter content and phenolic compounds were measured. The obtained results showed that organic sweet cherry fruits contained significantly more total sugars including glucose and fructose, total anthocyanins, especially cyanidin-3.5-di-O-rutinozide, as well as two identified flavonoids: luteolin and quercetin. Conventional sweet cherry fruits were characterized by significantly higher amount of dry matter, organic acids including citric and malic acids, and quercetin-3-O-glucoside, kaempferol content. Sweet cherry fruits are a very good diversification of our diet, it's a good idea to consume, especially those from organic farming.