This study was performed in a vineyard located at Samalut district, El-Minia governorate, Egypt over the duration of two consecutive seasons (2023 and 2024) to study the effect of summer pruning practices on microclimate and quality attributes of Attika Seedless grapevines. The six-year-old vines planted 2*3m apart, grown in sandy soil, irrigated with the system of drip irrigation and supported by Spanish Parron trellising. In the first week of January, the vines were cane pruned at a load of eighty-four buds per vine. Eight summer pruning treatments were done, including defoliation and pinching the main shoots accompanied by three levels of lateral branches (maintaining laterals, topping laterals or removing laterals), which were applied either alone or in combination, in addition to the control treatment. At fruit set stage, pinching the main shoots was cutting 3-4 cm, and the lateral branches were topped up to 5-6 leaves, while the defoliation procedure was achieved by removing the leaves beneath the cluster at the veraison stage. The findings demonstrated that all summer pruning practices positively affect all quality attributes compared to untreated vines throughout two seasons. Pinching and topping laterals plus defoliation attained the best overall results by enhancing vine microclimate, which is reflected in improving vegetative growth aspects, elevating yield and enhancing berry quality traits of Attika Seedless grapevines.