Evaluating the benefit of general survey funds is one of the hottest problems to national economic general survey. The fund problem can't be ignored yet, in light of the beginning of the second census in the end of 2006. This article constructs the tridimensional and latitudinal system of benefit evaluation , so that the general survey funds could be reflected well. This evaluation system depends on fiscal watch and social audit institutions from the perspective of space, establishes comparable information of the funds of general survey from the perspective of time, uses quantitative and qualitative, financial and non-financial indexes, and applies Balance Score Card which monitors and appraises the funds used.