A new measuring method of Brinell hardness that based on computer vision is presented in this paper. Aiming at the electrical testing measures such as digital computer and CCD industrial camera, it can accomplish Briness hardness measurement through image acquisition of indentation on the specimen, feature extraction and information processing. The experimental results indicate that the image measuring method of Brinell hardness is the one that embraces high level of automatization and low human error. Furthermore, it does still possess great advantages in measuring precision, reliability and anti-noise ability.