The technology of film mulching was popularized in the late 1970s in Inner Mongolia autonomous region.But the plastic film residue pollution has become one of the main restraint factors for agriculture sustainable development.According to the statistics，the area of plastic film mulching reached more than 1.33 million hm2 and the amount of agricultural mulch used was more than 49 000 t and kept increasing trend year by year after 2011.This study showed that the film thickness in use for the whole region was generally between 0.006 mm to 0.008 mm.However，the recovery rate was only about 60% and the average amount of residue of the film in the whole region was 84 kg/hm2.The recovery ratio was 20% lower than the data which was publised in the first national pollution census bulletin in 2010 and the membrane resides was 40.5% higher than the data in bulletin.Membrane resides were mainly distributed in the 0~20 cm top layer of soil.The average growth rate of membrane resides in the plots which was new with mulching film in recent years was significantly higher than the plots that covering film in a longer period.According to current situation of plastic film pollution in the region，the corresponding prevention and control technology，and the specific mechanism including the standardization of plastic film production，economical use，efficient recycling and the new materials，new technology，new policies should be put forward in the future to implement the widespread promotion of membrane technology，increase the crop yields and realizing agricultural sustainable development.