Taking ground-based laser irradiating moving target as the background,the influence of parameter characteristics on temperature field irradiated by laser was analyzed.Firstly,the laser irradiating parameters were solved based on setting mutual scene.The parameter characteristics of laser irradiating moving target include the values of average power density changing with target moving.The spatial profile of laser beam on irradiating area is elliptic Gauss-function.There is forced heat convection on the target surface.Then temperature field of moving target irradiated by laser was calculated by the finite volume method.Finally,the influence of parameter characteristics on temperature field irradiated by laser was analyzed.The results show that the values of average power density and the rate of temperature rising increase with target moving.The spatial profile of laser beam and area of laser irradiating are different because of the difference of angle between laser beam and target.There is forced heat convection on the surface of target which results in the decrease of the temperature rising rate.