The beneficial effects of boron, zinc and active dry yeast on yield and fruit quality of Zaghloul date palm grown at the Experimental Orchard, Faculty of Agriculture, Assiut University, Egypt was studied during 2011, 2012 and 2013 seasons.The experiment was set up in a complete randomized block design with ten replications of one bunch each. All treatments were sprayed two times at after set and one month later. The obtained results could be summarized as follow: Boron, zinc and active dry yeast spraying significantly increased the fruit retention percentage and bunch weight compared to untreated one. Yeast application had more effective compared with boron or zinc application. Spraying either yeast, boron or zinc at any concentration was accompanied with improved fruit quality in terms of significantly increased fruit weight, total soluble solids and sugar contents. No significant differences between spraying with yeast 250 or 500 ppm, 500 or 1000 ppm zinc, as well as, boron at 1000 or 2000 ppm. Moreover, active dry yeast spraying revealed highest improvement of yield and fruit quality. So, it concluded that spraying either of boric acid, zinc sulphate or active dry yeast twice at after fruit set and one month later increased the yield and improved the fruit quality of Zaghloul date palm. Moreover, using yeast had more effective than using either boric acid or zinc sulphate