The invention relates to a preservation technology used for vegetables at a normal temperature, and belongs to the technical field of agricultural products. The preservation technology comprises the steps of firstly conducting primary selection and refined selection on the vegetables, and putting the selected vegetables alone; soaking the selected vegetables with cold water, and afterwards, conducting ultraviolet irradiation on the selected vegetables for 10-15 minutes; putting the sterilized vegetables into a holding barrel; preparing protective liquid, pouring the prepared protective liquid into the barrel in which the vegetables are put, and making the vegetables suspend in the protective liquid. According to the preservation technology used for vegetables at the normal temperature, the technology is simple and reasonable, the vegetables can be preserved at the normal temperature, the cost is low, and batch storage can be conducted; in addition, not only the preservation problems of the vegetables during the transportation process are well solved, but also the situation that people can eat vegetables in slack seasons is guaranteed.