College students’ basketball friendly match not only can promote team spirits, but also can increase their collective sense of honor. It is very important to make correct evaluation and bring scientific training orientation guiding to each college representative basketball team. This paper takes one college 12 representative teams’ basketball technical index as research objects, use grey system theory establish comprehensive evaluation model so as to read basketball historical data influence on sport performance through mathematic model method, and provide scientific basis for basketball pre-competition preparation. First do standardization handling with each index data from each basketball representative team, and solute differences list of each index, then work out relevancy between technical index and performance, and get each representative team each technical index level advantages ranks, finally utilize composite index method get basketball competition prediction performance with average composite index and sum of score ratio.