In order to study the effect of replacement the traditional mineral NPK fertilizers by using NPK nano fertilizers, whether individual or in combination on vegetative growth, nutritional status and productivity of fifteen years old “Al-Saidy” date palm (also called Sewy cv.) grown under New Valley conditions. Field experiment was achieved during 2018 and 2019. The obtained data shows that all nano fertilizers treatments present higher and significant effect on vegetative growth (i.e. number of green leaves/palm, number of leaflets/leaf, leaflet area and leaf area), leaf main pigments (i.e. chlorophyll a, chlorophyll b, total chlorophyll and total carotenoids), nutritional statues (i.e. N, P and K leaf contents) and productivity (i.e. bunch weight (kg) and yield (kg/palm)) than using the same analogous traditional fertilizers treatments. All combined nano fertilizers treatments caused significant increases in all study parameters than using each one individually, these results were true in both experimental seasons. Furthermore, treated Al-Saidy date palm with the three nano fertilizers in combination (N+P+K) present the best results.