The invention relates to the technical field of grape production, in particular to novel technology for twice production of grapes in one year. The technology comprises production period normal management, normal technological management of a sunny
greenhouse, normal technological management of a sunny
greenhouse, nutritive water management and comprehensive control of diseases and insects, fruiting of winter buds of annual-growth grape plants, twice planting of annual-growth grape plants in one year and twice production of fresh grapes in one year. The production steps comprise: selecting a good-quality grape variety, planting annual-growth grape seedlings in a soil accommodating container, placing the container in a corrugation, performing the production period normal management, trimming before protection against cold, disc-fixing grape braches, covering the grape braches by sand, taking the container out, transferring the container to a temperature regulation room, controlling the temperature and the
moisture of the temperature regulation room, performing the before-planting temperature rise twice in one year, taking out the container, placing the container in the corrugation, performing the normal management, and simultaneously placing an
ozone generator to control the growth of braches, leaves, flowers and fruits. By adopting new technology, the grape yield is improved by three times, the
utilization rate of land is doubled, the profit is raised by three times and the labor efficiency is improved.