For development of parental pollinators of sugar beet resistant to powdery mildew disease, a rather resistant 14442 population was used. Based on the RESISTANCE index, 50 resistant plants were selected to produce half sib families (H.S.F). After open pollinating between these 50 plants, seeds of H.S.F were harvesed. Among these 50 plants, 39 plants produced enough seed. This H.S.F were planted in one raw plot with six replications and evaluated for disease RESISTANCE in the next year. Three H.S.Fs (H.S.F13, H.S.F24 and H.S.F35) with high level of RESISTANCE were selected. These three families were expressed to selection 150 roots were selected to produce next half sib families. Among these 150 families, 88 roots produced enough seed. In the next cycle, 88 new H.S.F were evaluated for disease RESISTANCE and three H.S.Fs (H.S.F5, H.S.F17 and H.S.F22) with high level of RESISTANCE were selected. From each H.S.F, 35 roots were selected to produce S1 lines. In the cage, among 105 roots, only 13 plants produced enough seed. 13 S1 were evaluated again for disease RESISTANCE in the next year. Low level of infection (12.9 %) was observed in the S1 lines. Therefore, selection in the 14442 population for powdery mildew RESISTANCE was very effective, and the plants selected in this method showed 72.6 % selection progress. Because of the high RESISTANCE of the S1 lines, they could be used to develop powdery mildew resistancte varieties.