The high-tensile hard coupling device for mine flatbed trucks is meticulously engineered to excel in the challenging and fast-paced conditions of underground tunnels. Specially designed for superior performance, this innovative solution navigates inclines, declines, and sharp turns with unmatched precision where traditional soft couplings fail. It proficiently eliminates vehicle collisions during multi-vehicle transport operations, effectively resolving critical issues such as front lifting, rear compression, and operational accidents often encountered during ascent, descent, and turning. This cutting-edge device ensures seamless and safe transportation, setting an unprecedented standard for reliability and safety in the mining industry.