The comprehensive statistical ranking of exam score is extremely important for tens of millions of Chinese students taking the national college entrance examination every year. With the gradual improvement of people's understanding of the idea of relative criterion, it is found that the traditional statistical method uses the idea of subjective and absolute standard, and there is a large error between its statistical results and the objective reality. This error leads to great problems in talent selection, which should be abandoned. This paper puts forward that the examination results should be like a timing running competition, without the limit of the maximum full score. Under the guidance of the thought of relative criterion, the objective and scientific theory of relative criterion is adopted for the comprehensive statistics of examination results. In this paper, the application of the formula of relative criterion theory to the comprehensive statistics of examination results is expounded step by step from the simple to the profound in combination with the current actual situation; The specific calculation method is given in detail with an example. A simple relative criterion value of similar exchange rate is derived from the comprehensive statistics of ten million scale examinations. And the method of regional statistics based on relative criterion theory is used to solve the problem of disunity of test papers.