<p>Magnesium oxychloride fixed-abrasive grinding tools, as a novel type of green grinding processing tool, are recognized for their simple process and environmentally friendly characteristics. However, the processing performance of current unstructured magnesium oxychloride pads is limited. In this work, a novel type of magnesium oxychloride pad with a double Fermat-grooved structure (DFG) was proposed. The binder formulation for this pad has been optimized, and the structure was designed and manufactured. To verify the processing performance of the pad, a comparison was made with the traditional unstructured pad (TUP) in grinding experiments on sapphire. The surface morphology, surface roughness, material removal rate of the workpieces, and pad surface morphology were comprehensively investigated. The results show that when processed under identical processing conditions for 60&#xa0;min, the surface pit defects on workpieces using the DFG were reduced by 36.67% compared to using the TUP. In addition, as the speed ratio increases from 0.9 to 1.1, the surface roughness and average peak-to-valley height (PV) of the workpieces ground with the DFG are lower than those ground with the TUP at various speed ratios, with average reductions in surface roughness and PV of 20 and 22.6%, respectively. With the extension of grinding time, the surface roughness and PV of the workpieces show a downward trend, and the DFG demonstrates a more pronounced decrease in surface roughness and PV, with average reductions of 19.6 and 25%, respectively. The unit material removal rate using the DFG processing is 14.97% higher than the TUP processing. Therefore, the results prove that the DFG can achieve a better surface quality of the workpieces, and the findings provide a reference for the structured design of magnesium oxychloride pads.</p>