Abstract: Using part of the graduate schools' data in 1994 from 18 Chinese polytechnic universities with the State Council approved graduate schools,and by means of factor analysis and cluster analysis,two factors are extracted from the eight variables standing for the graduate schools' scales of the 18 Chinese polytechnic universities.One is related to the doctoral scales,the other is related to the master's scales.The graduate schools' scales of the 18 Chinese polytechnic universities in 1994 are rated and classified according to the two comprehensive factors' scores.The study method can be a reference for educational assessment on the graduate schools' scales of polytechnic universities.