Abstract：The integrated prognosis of concealed ore deposit location has become a heated research field. The formation of the mineral deposit or ore spot is a non-linear process affected by many ore-controlling factors. The fuzzy optimization model of multi-attribute decision-making is an efficient method for dealing with such a problem. However, the creation of FOMMAD is not an easy thing. It is a key problem to find a scientific and reasonable method for attribute weight. Meta-analysis is a very comprehensive statistical method that systematically combines, analyzes and comprehensively evaluates several relevant trials． It has been applied generally to medical problems，and its statistical methods are developing day by day． Hence meta-analysis can provide reasonably scientific approach to attribute weight. In this paper, the principle and feasibility of the meta-analysis for metallogenic prediction were analyzed and demonstrated, and Tianmashan-Jingkouling-Tongguanshan area was chosen as the study area. Meta-analysis is applied in quantitative comparison of availability of five explorations for the first time. In the end, a comprehensive evaluation model for environmental quality at tourism sites was established based on analytic hierarchy process, Delphi Law, and the multi-level fuzzy synthetic evaluation method, and the environmental quality of the Zhangjiajie National Forest Park was evaluated. The authors made the multivariate metallogenic information synthetic prediction and evaluation to the study area, integrated the geological analysis results, and delineated 12 target areas which had high advantage degree in metallogenic conditions. Compared with the other relevant materials and outdoors verification, it is shown that the application of this kind of model to delineating target areas is highly effective in ore-prospecting work.