Abstract: 【Objective】 To study the present situation of soil mulching film residual in Xinjiang cotton producing areas and provide scientific basis for the prevention and control measures of cotton mulching film. 【Methods】 Soil samples were collected from different surface layers in typical cotton areas of 20 counties and 9 prefectures in Xinjiang, and the residual amount of plastic film, the number, area, quality and film thickness were counted. After that, the occurrence characteristics and influencing factors of soil residual film were studied, and the correlation analysis was conducted to discuss the influence of residual film amount on plasticizer content. 【Results】 The amount of soil residual film in the main cotton producing areas of Xinjiang ranged from 3.19-454.03 kg/hm², with an average of 126.24 kg/hm². The spatial distribution of residual film was as follows: southern Xinjiang>Northern Xinjiang > Eastern Xinjiang; The residual film distributed in 0-20 cm soil layer was significantly higher than that in 20-40 cm soil layer. With the increase of mulching years, the residual film showed a trend of moving down to deep soil. The residual film content was positively correlated with the degree of breakage (P<0.05), was significantly negatively correlated with film thickness (P<0.05), and the content of PAEs in soil was positively correlated with the content of residual film (P< 0.01). 【Conclusion】 Major cotton producing areas in Xinjiang soil residual membrane pollution belong to medium pollution level, the soil content of residual vertical distribution of membrane and membrane and the number of pieces gradually reduce with the increase of soil depth, and the difference of spatial distribution of different residual membrane regions is obvious. Along with the increasing length of laminating, top layer of soil and the content of residual film in number are on the rise, and the amount of soil residual film is significantly correlated with PAEs in soil.