Abstract: Qinling locates in the central part of China continent,stretching 1300 km from east to west. It's well known as "central polymetal metallogenic zone" in China. Gold and silver are superiority natural resources. Up to now,we have found 145 gold deposits(44 placer gold and 101 rock gold deposits)and 24 silver deposits. There are many metallogenic types of gold and silver deposits in this area. It possess better ore-forming conditions. The mineralization for the famous "Shaanxi Gansu Sichuan gold triangle" was controlled by megabrush structure,can be comparable with many mega-ultromega gold deposits all over the world. The metallogenic regular of gold and silver deposit is obvious. This area possess very ideal ore-forming condition,and is the best place to explore mega-ultromega gold deposit further.