Prof. Bao and co-workers, in their article on pages 257–263, reported a long-term stability test of Mo/HZSM-5 catalysts in methane dehydroaromatization (MDA) reaction with periodic CH4-H2 switch at 1033–1073 K for more than 1000 h. This optimized CH4-H2 switch offers a feasible approach to suppress coke deposition. Using H2 produced in MDA reaction as the regeneration gas, the CH4-H2 switch mode can serve as a valuable reference for future utilization of MDA process.