Abstract: The paper introduces the key equipment to solve the difficult problem about producing oil with peeled rapeseed. The key equipment is the Model YPHG100 high oil-bearing rapeseed extrusion-expansion machine. When the processing conditions are as follows: the water content of rapeseed is 3.7%～5.0%,temperature of rapeseed is 90～95℃, reaction temperature is 108℃ and steam pressure is 0.75～0.80 MPa, the machine can extrude part of oil from the rapeseed and at the same time the material is extruded to become multi-tiny bore grain. The diameter of the grain is 6.5 mm and specific gravity is 480～495 kg/m². Expanding proportion is 1∶1.69 and residual oil rate is 27%～28%. And finally the oil production efficiency is 39.0%.