The hydrogen evolution reaction (HER) holds great potential for sustainable hydrogen production but developing efficient and cost-effective electrocatalysts remains challenging. Here, we report the synthesis of a hierarchical WC/NiCoW hollow nanotube array electrocatalyst, featuring rapid gas release to minimize bubble aggregation and reaction retardation. Mechanistic insights into the HER kinetics reveal enhanced electron transfer at the WC-NiCoW interface and an accelerated Volmer step. The optimized WC/NCW-600 exhibits superior HER activity and remarkable long-term stability for over 72 h in alternated acidic, neutral, and alkaline electrolytes. This work highlights new insights into the rational structural design of durable electrocatalysts for hydrogen production.