The invention discloses a cultivation method for an early-maturing thin-shelled walnut applicable to hilly and mountainous areas. The method comprises the following steps: selecting the thin-shelled walnut of the hilly and mountainous area with slope of 20-30 degrees to flatly plan; cultivating young trees; scientifically picking buds; managing
fertilizer and water; applying
mushroom stalks before the young trees sprout;
pruning and pulling branches; remaining 3-4 robust new buds before
germination of the young trees, and
pruning all the rest buds; performing management of flowers and fruits, wherein the
fertilizer and water management is taken into consideration before and after blooming of the third year after planting of the young trees. According to the method, the single
fruit weight and the appearance quality of the thin-shelled walnut can be improved, the
mouthfeel of the thin-shelled walnut is improved, and the content of
walnut oil in the fruit is improved by 35 percent; the
attack of diseases and pests of fruit peels is reduced, meanwhile the content of
protein of the thin-shelled walnut is also improved, and the fruit is full and thin-shelled.