The Jubao copper deposit in Taonan, Jilin Province is situated at the Budunhua-Changchunling tectonic-metallogenic belt. It is made up of three lode groups. Altered diorite porphyrite and a SN trending-fault control the occurrence and distribution of the Copper mineralization. The main ore minerals found in the Jubao copper deposit are chalcopyrite, pyrite and chalcocite with varied gold and silver enrichment. The mineralization in the deposit could be divided into four stages: pyrite, chalcopyrite, polymettlic sulfides and carbonate stages. The fluid inclusions of the Jubao copper deposit is made mainly of vapor and liquid two phases and daughter mineral-bearing three phases. It is concluded that the Jubao copper deposit belongs to medium temperature magmatic hydrothermal deposit and the mineralization is genetically related to the diorite porphyrite.