The postharvest losses index for fruits in Brazil is high. To attend the quality exigencies and minimize those losses, it is initially necessary to detect the problems on the commercialization chain. Because of that, this study aimed to evaluate the postharvest losses in table grapes during the operations carried out in packinghouses of firms located in Petrolina-Pernambuco State/Juazeiro-Bahia State region and during the com- mercialization in Mercado do Produtor de Juazeiro. The study was carried out in three packinghouses and in three sell places of the Mercado do Produtor de Juazeiro. In the packinghouses, it was observed one day of ac- tivity, following the normal procedures. For sampling, the wasted fruits were weighted, characterized according the kind of loss and quantified before doing another weighting for each identified category. In Mercado do Pro- dutor de Juazeiro, the study was carried out in a similar way, including the same evaluations. Because of the rigorous quality criteria, the percentage of losses in table grapes in packinghouses was 3.9%. This percentage was higher than the value observed in Mercado do Produtor de Juazeiro, which was 1.5%. The main cause of postharvest losses in grapes was mechanical injury in both studied conditions.