Abstract: Based on the summary of the previous results，the paper studies the source beds，magmatic rocks and geological structure in Zhejiang(western Zhejiang)-Anhui (southern Anhui)-Jiangxi(northeastern Jiangxi) border region of Qinhang metallogenic belt.The mantle magma directly participated in mineralization is the fundamental factor for the development of the polymetallic deposits related to porphyry in Yanshanian at the northeastern Jiangxi，and the structural environment with both tension and compression is the key factor.Furthermore，more discordogenic faults in the northeastern Jiangxi are developed，which benefits the mineralization participated by deep magma.The northeastern Jiangxi also has more source bed，and has experienced multistage mineralization.The Xiaoyao rock is the favorable place for prospecting deposits of W，Mo，Cu and Au，and Tianjingshan Gold Deposit in Xiuning has an optimistic mineralization prospect.

Key words: Zhejiang-Anhui-Jiangxi border region, Yanshanian, Source bed, Magmatic rock, Tectonic environment