The invention relates to a 
system and a method for evaluating comprehensive performance based on an improved 
radar chart. The method comprises the following steps of: by using a comprehensive performance evaluation model construction module, constructing a comprehensive performance evaluation model through a 
visual interface; by using a judgment matrix construction module, setting pairwise comparison importance parameters of each index in a 
user input evaluation model, establishing a comparison and judgment matrix, and performing consistency check; by using a 
weight value computing module, implementing an 
analytic hierarchy process, and computing a 
weight value, relative to a comprehensive performance total target of the 
system, of each index; and by using a 
test data processing module, collecting, analyzing and standardizing 
test data, sending the 
test data to an 
evaluation result generation module, computing the comprehensive performance of the 
system, and performing visual output. By the invention, the problem of non-uniqueness in the area and circumference of the conventional 
radar chart is solved, so that an 
evaluation result is more accurate and more objective. The invention can be applied more flexibly and more conveniently.