In order to explore the influence of the amount of soil residual plastic film on the water and nitrogen transport characteristics of the infiltration of film hole irrigation, five residual plastic film levels were set up through an indoor simulation test, which were 0, 90, 180, 360 and 720 kg/hm², respectively. The cumulative infiltration volume, the wetting front migration distance, the characteristics of the wetted body, the distribution of water and nitrogen were studied. The results showed that the residual plastic film had a negative effect on the infiltration of film hole fertilizer solution, and the cumulative infiltration of the residual plastic film soil reduced by 10.63%~30.77% compared with the without residual plastic film soil. The Kostiakov model matched well with the cumulative infiltration per unit pore area of the residual plastic film soil and the infiltration time. Concretely, the vertical wetting front migration distance of different soil residual plastic film amount did not change significantly for initial 30 min, while, the amount of residual plastic film was negatively correlated with the wetting front migration distance and the wetted body volume with time. When the infiltration was completed, the wetted body volume decreased by 18.09%~41.96%. The vertical wetting front migration distance and wetted body volume had significant power function relationship with infiltration time with R²>0.98; the soil water content with residual plastic film at the same position was lower than that without residual plastic film except for the center of the film hole, and the area with high water content of 30% decreased. The content of NO₃^--N and NH₄⁺-N in the soil at the same depth in the wetted body decreased with increasing residual plastic film, and the range was 4.20%~16.27%. The research can provide theoretical reference for the application of film hole irrigation technology in residual plastic film area.