Abstract: 【Objective】 To study the regulation effect of N₂ packaging treatment on sugar components and sugar metabolism-related enzyme activity in Xiaobai apricot fruits. 【Methods】 With Xinjiang characteristic Xiaobai apricot fruit as the test material, the vacuum pre-cooled combined with nitrogen (N₂) packaging was used for treatment, after that, they were stored under 4 ℃ conditions for the storage time of 18 d. 【Results】 The results showed that:vacuum precooling combined with nitrogen treatment could increase the content of glucose and fructose in the apricot, by increasing sucrose phosphate synthase (SPS), sucrose decomposing enzyme (SS-I), neutral invertase (NI), acid invertase (AI) activity, thereby reducing the content of sucrose and sorbitol. When stored for 18 days, the glucose content of the apricot in the vacuum precooling combined with N₂ treatment group was 93.42 mg/g and the fructose content was 54.73 mg/g, which increased by 13.32% and 11.6% respectively compared with the control group; In addition to that, the activities of SPS, SS-I, NI, and AI increased by 31.42%, 44.06%, 9.58%, and 19.98%, respectively. 【Conclusion】 The vacuum precooling combined with N₂ treatment can maintain the sugars in the Xiaobai apricot, thereby better maintaining the taste of the apricot.