This investigation was carried out during two successive seasons (2020 and 2021) on the 5 -year- old of Keitt Mango cultivar grown in a private orchard located at El-Farafrah Oasis in the New Valley Governorate, Egypt, to study the effects of three levels of shading net (no shading, shading net 30% and shading net 60%) and five different rates of some natural materials  (0, 4 & 6% kaolin) and (1 & 3% CaCo₃) and their interactions on vegetative growth, yield and fruit quality of Keitt mango tree under heat stress conditions. The best results were recorded with kaolin treatment at 6% level and shading net at 30% which improved fruit set, number of fruits per tree, fruit weight, yield kg/ tree, yield ton/ feddan, fruit length, fruit diameter, fruit volume, fruit firmness, flesh weight, flesh %, fruit TSS fruit T.S.S./acid ratio, vitamin C and total sugar. While, reducing sunburn fruits %, fruit drop, seeds weight, shell weight, seeds % and fruit total acidity content. So this treatment was proved to be the most efficient in enhancing, the yield and fruit quality of Keittt mango cultivar.