Abstract: Long distance excavation roadway in deep mine faces serious thermal damage, which has many influential factors and is difficult to prevent.It is of great significance to study the distribution law of heat source and surrounding rock temperature field for mine thermal damage prevention.Taking the 1802 transport roadway of Xinzhuang Coal Mine as the research background, the influential factors of temperature rise in excavation roadway were investigated, the weights of various heat sources on underground temperature rise were analyzed, and the numerical model of surrounding rock of excavation roadway was further established to clarify the distribution law of surrounding rock temperature field.The temperature of surrounding rock at different positions in the roadway is measured.The research results show that the main heat source causing the underground temperature rise is the heat release from the surrounding rock.The farther the distance between the surrounding rock and the roadway, the higher the temperature; the larger the temperature conductivity coefficient, the smaller the temperature change range of the surrounding rock, and the larger the radius of the heat regulating ring.