High temperature phenomenon is a kind of common natural disasters in the process of tunnel excavation, and the common solution is ventilation cooling. With a high temperature tunnel as an example and combining with the Fluent numerical analysis, explores from the theoretical level 3 kinds of common ventilation methods such as the side wall forced ventilation, the hybrid ventilation and the vault ventilation to solve this kind of disaster, and from the micro level analyzes the motion law of tunnel jet flow and discusses the suitable temperature control mode. The research results show that：the side wall pressure ventilation temperature control for high temperature tunnel has poor cooling effect; the cooling effect of hybrid ventilation temperature control is the worst, moreover it affects the service life of fans and exists security risks; the vault pressed ventilation temperature control mode for high temperature tunnel shows the efficient cooling effect.