The invention discloses a double-cropping cultivation method of grapes. The method comprises routine management in an open field during a culturing and growing period, temperature, humidity, lighting and nutrient and water management in a sunlight greenhouse, growth regulation and control of branches, leaves, flowers, fruits and roots, as well as routine cultivation and management techniques. Premature grape varieties with fast flower bud differentiation, strong repeated fruiting capability, high and stable yield and high disease resistance are selected; trimming, bud promotion, as well as pinching and lateral shoot processing of first-crop fruit and second-crop fruit are performed for matching; lateral shoot processing and spike determination management are performed on the second-crop fruit; and more than two times of fruiting in one year is achieved through a comprehensive management technology of forced pinching and lateral shoot processing. According to the method, grapes are cultivated in semiarid areas in western part of Liaoning province in the north, two times of fruiting in one year are achieved, a use mode for land cultivation of the grapes in the north is changed, and the grape yield is increased by more than two times; the land use capability is doubled, and appreciation of land value is maximized; and product quality, yield, economic benefit and safety of the grapes are better than the grapes cultivated under natural conditions and in a traditional sunlight greenhouse.