The current study was carried out to minimize the Egyptian wheat grain losses in quantity and deterioration of quality during open field storage by innovative and economic method. This method based on efficient control of moisture, moulds & insects in wheat grains during storage in three different types of poly-ethylene bags with different materials structure and film thicknesses of 90, 120 and 140 microns. The developed bags were compared with the traditional burlap storage bags. Freshly harvested wheat grain variety (Gemmiza-9) was used for the experimental work. The wheat samples were harvested from the Experimental Farm of the Rice Mechanization Center (R.M.C) at Meet El-Dyba, Kafr El-Sheikh governorate during (2014-2015) wheat harvesting seasons. Quality changes of wheat grain stored in different types of bags were measured to assess the most proper type of bags for large scale storage process.  The results show that: Storing wheat grain in storage bags (Type 2 and 3) did not create a lethal environment for insects, molds and total microbial load.Wheat grain at (M.C less than 13% w.b.) could be stored in the developed plastic bags (Type 2 and 3) for more than six months without losing the grain quality and also without fumigation process for insect control. Poly-Eythelene bags (type 3) give more moisture sealing and less permeability for CO₂ in comparison with other types of bags and thereby it can safely store the grain for longer storage duration.Further tests for both storage bags Type 2 and 3 are recommended to assure larger scale storage and longer storage time.