Abstract: 【Objective】 To study the effects of different spring irrigation quotas on water temperature and salinity in cotton fields and seedling growth of cotton in Xiaohaizi Irrigation District.Provide a certain scientific basis for the reasonable spring irrigation quotas in the southern Xinjiang. 【Methods】 Three water treatments (W₁:1,350 m³/hm², W₂:1,800 m³/hm², W₃:2,250m³/hm²) were set up for spring irrigation to analyze the effects of different spring irrigation quotas on water temperature and salinity of cotton fields and cotton seedling growth. 【Results】 The average soil water content in the 0-60 cm soil layer of the W₃ treatment was higher than those of the W₁ and W₂ treatments, and the water retention capacity of the upper tillage layer was better.The W₃ treatment had a lower ground temperature at different depths than those of the W₁ and W₂ treatments, and the ground temperatures between the rows were higher than those between the membranes.The salt content in the surface layer of W₁ treatment was lower than those of W₂ and W₃ treatments, and the salt washing rate of 0-50 cm was 6.77%, 22.22% and 30.03%, respectively, and the larger the amount of spring irrigation water, the better the effect of salt washing, and the average salt accumulation rate of 50-100 cm was -39.89%, -58.95% and -68.91%, respectively, which indicated that with the increase of irrigation water, the salts were carried by the water into the deeper layer and increased.The height, stem thickness and leaf area of cotton seedlings in the W₁ treatment were the largest, and a certain degree of water deficit was favorable to the growth of cotton seedlings. 【Conclusion】 Different spring irrigation quotas have a certain degree of salt washing and moisture increase effect, manifested as W₃ > W₂ > W₁ treatment.