AbstractTo realize automatic test of the shell motion parameters in the artillery experiment, the digital high-speed camera is used to gather the shell motion images. By applying digital image processing technique the characteristic images of shell are extracted accurately. Combined with the measuring principle of the shell motion parameters, a image test system is designed and realized automatic test of the shell motion parameters. The test results of shell motion images indicated that, the image extraction algorithm presented in this paper is easy to use and universal, and the precision of data measurement is increased. At present, the image test system has been applied in the data analysis in the artillery experiment and obtained good performance