The paper is focused on market research of private label development in Serbia from 2005 to 2010. Core objective of the paper relates to the comparative analyses of private labels portfolios and strategies between different retail formats. The data used for the research are official statistical data and data collected within the interviews of consumers (200 samples) and private labels managers in four retail chains. Characteristics of private labels between different product categories are not high statistically different from its characteristics at EU markets. Private labels will continue to raise its market and category shares with the high rate in the next 5 years at Serbian retail market.