In summary, CoS-1 represents a landmark in cobalt-catalyzed PDH, outperforming previous reported non-precious catalysts and even exceeding conventional Pt-Sn catalysts, especially in terms of durability in dehydrogenation-regeneration cycles. Compared with prior Co-containing zeolite catalysts, this indicates that unstable Co contributes little to catalytic activity but is the main cause of deactivation. The cobaltosilicate zeolite with abundant Co^δ+-O-SiO_x structure fulfills the critical requirements for industrial PDH: high activity and selectivity, long-term stability under harsh conditions, and facile and environmentally friendly regeneration via calcination in air. It offers a viable and cost-effective alternative to Pt-based catalysts, representing a significant advance in sustainable propylene production technology. The underlying design principle establishes a foundation for developing next-generation PDH catalysts utilizing earth-abundant metals.