Abstract: The method and mathematical model of comprehensive assessing for surface roughened are suggested in this paper, and then an assessing problem is solved, in which single parameters value can not completely characterize geometrical property of surface and surface function. The results indicate the effective success by using the method. It can not only get a true simulated surface of machines, but also provide a theoretical basis for the comprehensive assessing.

Key words: 粗糙度, 综合评定