This article first describes the basic concepts of infrared temperature measurement and screening,the working principle of infrared temperature measurement and screening equipment.Then,in response to the shortcomings encountered in actual use,a temperature measurement method based on dynamic data statistics for large flow crowds is proposed.Finally,combined with the experiments and practical applications of high resolution,a large field infrared temperature measurement and screening equipment with a combination of high resolution and large field of view,undergoes experiments and practical applications in all seasons.The accuracy of the temperature measurement with large flow of people is thus verified.