Abstract: Widely used of film covering technology promotes rapid development of agricultural economy，but at the same time，a lot of residual film on phagocytic environment and land phenomenon is also very serious.Extension situation of mechanical recovery technology of farmland residual film in Lanzhou was analyzed.Reasonable measures and suggestions were put forward.Developing modern circular agriculture，promoting application of mechanical recovery technology of residual film，solving and reducing‘White Pollution’are very necessary.