The experiment was conducted to study the effect of plastic film residue at different buried depths on silt loam drip infiltration. Two drip discharges (0.5, 2 L/h) and three buried depths of plastic film residue were planed. The wetting body shape, infiltration rate and soil water distribution were mainly studied according to the residue buried depth. The results showed that the deeper buried depth of plastic film residue caused the smaller the wet zone after drip irrigation. The wet zone around the plastic film was irregular. There was remarkable different between the drip infiltration in residue layer and the same layer’s infiltration of corresponding other treatments (P<0.01). In addition, soil water around the residue zone was apparently higher, and maximum soil water in the study zone increased with deeper buried depth of plastic film residue, and there were the similar laws for different drip discharges. So it can be concluded that the buried depth of plastic film residue in soil has a large influence on the soil water infiltration. It is meaningful for designing the irrigation schedule to make clear the effect of burial depth of plastic film residue on drip infiltration.