abstract: A pot experiments was carried out at National Research Center, Dokki, Cairo, Egypt, to investigate the effect of IAA (100, 200 and 400 mg∙dcm^-3), NAA (10, 20 and 40 mg∙dcm^-3) and kinetin (25, 50 and 100 mg∙dcm^-3) on Lupinus termis plant growth, yield and seed chemical composition as well as hormones contents compared with untreated plants. The obtained results indicated that the highest number of branches was obtained with kinetin treatment, especially at 100 mg∙dcm^-3. While, the maximum values of both number and dry weight of pods were obtained as a result of foliar application with kinetin at 50 mg∙dcm^-3. Spraying the lupine plants with bioregulators increased significantly the seed number per pod and per plant, and seed yield/plant except those plants treated with IAA at 100 mg∙dcm^-3. Applications of IAA, NAA and kinetin treatments had no significant effect on crop index, harvest index and shelling percentage. The maximum seed yield was recorded with the application of kinetin at 50 mg∙dcm^-3 followed by kinetin at 100 mg∙dcm^-3 as well as IAA at 100 mg∙dcm^-3. High levels of GA and IAA were observed in seeds produced from plants treated by IAA relative to those treated by NAA or kinetin. Spraying the lupine plants with the bioregulators IAA, NAA and kinetin caused an increase in protein content and total carbohydrates and decrease of oil percent in the lupine seeds