In view of the high difficulty, time consuming,low efficiency and high rejection rate existed in machining process of belt conveyor dedicated ceramic roller,a double grindinghead grinding machine for Al2O3 ceramic roller was designed. The overall structure and the grinding scheme of the grinder were determined.The grinding parameters, grinding force and power, rotating spindle power were calculated.The double grinding head structure design,tailstock spindle mechanism design, bed saddle structure design, bed structure design, structure design for controlling the grinding amount were emphatically analyzed.Using the special grinding machine, ceramic roller coarse grinding and fine grinding can be achieved through a grinding process,while the roller cylinder degree, surface roughness, yield efficiency can be ensured, the grinding efficiency is improved greatly.