Abstract: The attack angle of projectile,which is an important parameter to describe the flying attitude, refers to the angle between victory and axis.The measurement of three-dimensional attack angle, an important part in conventional weapon test, aims to analyze the validity and stability of the projectile and provides a vital basis for the evaluation of the weapon system performance.The traditional method is to use a slit camera on the synchronous scan mode(the speed of film is equal to the speed of target image). We proposed a measurement method of the attack angle based on scanning image of high-speed area array camera. The principle is as follows: A scan image is formed through extracting a fixed column of per frame and stitching the pixels sequentially;By interpreting the feature points, the 2D attack angle is obtained; Aiming at the problem that the scanning speed isn-t up to the film speed, the attack angle correction model and scanning image restoration method were built.Furthermore, we proposed a method of two cameras shooting from non-orthogonal directions to get the 3D attack angle, based on the surface-surface intersection theory. The experimental results show that this method can measure the attack angle of the targets under 1 000 m/s, the accuracy is better than 0.1.