The heat character of spin particles near the interior horizon of black hole is studied via solving Dirac equation by means of lagging Eddington coordinate. The result shows that there is radiation from hohlraum to interior horizon.

• 采用滞后Eddington坐标；通过求解Dirac方程研究了黑洞内视界附近旋量粒子的热性质；结果表明；存在有来自空腔射入内视界的辐射.