本文采用数值模拟法分析了激光加热温度场分布，此方法简单具有一般性，没有解析法通常所有的局限性．分析了材料表面热辐射，激光作用时间及功率密度对温度场分布的影响，作者认为此数值模拟结果是符合实际的． In this paper, numerical simulation of the laser heating temperature field distribution, this method is simple and general, there is no analytical method of all the limitations. The influence of surface heat radiation, laser action time and power density on temperature field distribution is analyzed. The author believes that the numerical simulation results are in line with the actual situation.