<p>The opposing jet technique has the potential to provide superior aerothermal protection for long-term high-speed flight in the atmosphere. However, the single-hole opposing jet has certain limitations, including a high requirement for jet injection pressure and inadequate maneuverability. To overcome this, a novel multi-hole opposing jet concept has been proposed, comprising a primary hole located at the stagnation point and multiple secondary holes located downstream. The findings indicated that a secondary hole positioned inside the primary jet recirculation vortex can inhibit primary jet flow reattachment and mitigate peak reattachment heat flux. A smaller secondary hole could impede the lift-off effect of the downstream vortex, facilitating efficient heat reduction at various jet injection pressures. The side-by-side and staggered multi-hole opposing jet configurations were established, which demonstrated an efficacy in reducing the peak heat flux by 11.7% statistically compared to a single-hole injection at the same mass flow rate. When an incoming angle of attack was presented, the multi-hole arrangement exhibited a further peak heat flux reduction of 12.2% by statistical analysis. The results underscore the effectiveness of multi-hole configurations with low-pressure injection in reducing heat and enhancing maneuverability, while demonstrating stronger engineering applicability than traditional combined thermal protection systems without structural compromises or flow instability risks.</p>