The aim of the research: to find ways to increase the productivity of new apple tree varieties and of fruit quality by developing new methods of tree crown maintenance and pruning. Apple trees, aged 11-12, of Gala Delicious, Golden Delicious and Granny Smith varieties, grafted on M9 rootstock, planted in the meadow of the Dniester River, namely at the Spica-N Agro Farm Cooperative, in the village of Onitcani, the district of Criuleni, served as the object of the research. The orchard had a planting density of 2857 trees/ha. Two apple tree pruning systems were used during the research period, namely in G1 (the control group) – the maintenance and thinning pruning; G2 – the maintenance and thinning pruning without the shortening of main branches. The experiment was carried out using four groups of eight trees each. The soil was artificially sown with grass between the rows and ploughed on the rows of trees. The pruning of trees was carried out according to the scheme of the experiment, i.e. pruning that permit to keep the trees in physiological balance of growth and fruiting. The fight against diseases and pests was carried out according to the guidelines issued by the Chisinau Station for Plant Protection and via direct observations made at the weather station directly in the orchard. Foliar application of urea and some micronutrients to fruit trees, i.e. foliar fertilization, as well as balanced fertigation using the drip irrigation as needed, were regularly carried out in the orchards during the vegetation period. The thinning pruning (G1) allowed for higher annual growth as compared with the maintenance and thinning pruning without the shortening of main branches (G2). If the main branches are not shortened (G2), but the length of the annual branches decreases, the crown of the tree develops in a balanced and natural way along the height of the tree and are able to form optimal crops for such orchards in a super-intensive system. Leaf area per tree and per unit area was almost the same for both trees pruning methods. The difference in leaf area, depending on the pruning method used, consisted in an increase in leaf area on shoots in G1 and an increase in leaf area on fruit formations in. The Gala Delicious, Granny Smith and Golden Delicious varieties, grafted on the M9 rootstock, were productive; after 11-13 from their planting, they produced between 19.6-48.2 t/ha in 2020, and between 51.0 - 65.4 t/ha in 2019. The Granny Smith variety showed a higher weight of the fruit as opposed to the Gala Delicious and Golden Delicious varieties. The firmness of the fruit, the titratable acidity and the dry soluble matter in the varieties studied are indicators that depend on the biology of the variety and less on the agrotechnics used in the orchard. The maintenance and thinning pruning without the shortening of main branches, exerted a major impact on the increase of the number of flower buds, the obtaining of stable yields of 30-40 t/ha, and the generation of a profit from the sale of production of over 100,000 lei/ha with a profitability of about 150%.