Abstract: In the third-party evaluation of geological survey results, owing to the influence from the quantitative meaning including in the word “evaluation”, most of evaluation works during the past have been done for the individual geological project, and the evaluation work to the general of similar geological projects have been ignored.The kind of evaluation will be discussed in the thesis and illustrated as example of the 1∶50 000 regional geological survey supporting looking for deposits and prospecting results.The rationality of the final results of the investigation and analysis shows the value and necessary of the evaluation system.