Abstract: In order to solve the problem of infrared image point position analysis,a method based on energy distribution was proposed.The image point position and accuracy were analyzed by the digital image processing techniques. The position analysis model and method flow were studied according to the image characteristics of infrared target;secondly,based on the analysis of position error factors, the accuracy evaluation was completed;finally,a typical application example was tested and verified through calculation.Compared with the traditional method,it is shown that the method based on energy distribution can be employed in position analysis of infrared image point with visual representation and high precision:the accuracy is better than 1/6 pixel usually or even better than 1/10 pixel for larger image.The method is significant in the research on IR detecting instrument and position analysis.