Zijinshan copper-gold deposit belongs to high sulfide epithermal type deposits. This paper systematically disscussed the ore-forming temperatures, mineralization stages and orebody size of Zijinshan copper-gold deposite by using the thermoelectricity of pyrite from the deposite and evaluated the ore prospects at depths in the ore district by using mineralogical mapping. The study shows that the deposit is a low-medium temperature copper-gold deposite, whose formation temperature is concentrated in 80-100℃ and 240-350℃.The thermoelectric conductive type of pyrite is mainly of N type, and the N type pyrite grains (N%) dominated 86.15% of the total content, with a mean thermoelectric coefficient of the N type pyrite being -168.07μV/℃. In terms of time and space,the thermoelectric coefficient ( high negative - low negative - negative)and the percent of the N type pyrite grains (high-low-high)show the rhythmic feature.From the early stage of the metallogenic to metallogenic period, The occurrence rate of p-type conductive type increased and appeared the N-P mixed type. The dispersion degree of pyrite thermoelectric coefficient in this area is large, it indicates that its metallogenic environment is unstable. The relative depth of the ore body indicates that the change gradient of the ore body is large, its output is unstable ,from the NW axial view, the average percentage of erosion and the absolute value of the relative depth of the orebody presented rhythm changes, it can be speculated that there may exist bonanza under -230m between section line 2 and section line 4 from high to low and the back to high.