Abstract: The extensive use of mulching film technology has aggraated pollution degree of domestic farmland residual film, which seriously affects agricultural production and life．Current research status of film collecting device of residual film recycling machine at home and abroad was analyzed, types of equipment for residual film recycling machines, including wrap film type, roll film type, box type, round bundle and square bundle type, were summarized, characteristics, working forms, advantages, and disadvantages of each type of device were analyzed．Difficulties and problems encountered in developing current film-collecting device were put forward．Finally, some suggestions were proposed for developing film-collecting devices in a residual film recovery machine．