Through the comparative analysis of the magmatic zircon trace elements and Hf isotopes of the intrusive rocks in the four stages of the Qingyang—Jiuhuashan complex pluton, the magmatic physical and chemical properties, magmatic properties of the four stages of the Qingyang—Jiuhuashan complex pluton was discussed evolution process, differences in magma source areas, and metallogenic potential, demonstrated the magmatic origin, magma source area and metallogenic connection of the four stages of the Qingyang—Jiuhuashan complex pluton, revealing the late Mesozoic crust—mantle interaction of the Yangtze block action process. Methods: On the basis of field work and whole- rock chemical analysis, zircon in- situ trace element and Hf isotope analysis was carried out on the four stages intrusive rocks of the Qingyang—Jiuhuashan complex pluton, and zircon Ti temperature calculation, oxygen for fugacity calculation, the Sr—Nd—O isotope data of the predecessors of the compound rock mass were collected for comparative analysis and source area simulation work. Results:The 4 stages of intrusive rocks in the Qingyang—Jiuhuashan complex pluton from early to late, zircon REE 558. 6×10-6 ~ 3222. 7×10-6971. 1×10-6 ~ 2364. 9×10-6 864. 9×10-6 ~ 4453. 6×10-6962. 2×10-6 ~ 4119. 1×10-6; δEu (mean value 0. 5 0. 4 0. 3 0. 2); magma formation temperature (mean value 705. 3℃ 715. 9℃ 827. 1℃ 805. 5℃) ; Ce4+/Ce3+ (mean value 93. 8 149. 1 70. 1 69. 9); εHf(t) value (-12. 3 ~ -5. 1 -12. 0 ~ -7. 5 -6. 6 ~ -2. 2 -8. 6 ~ -4. 9), intrusive rock at early stage (stage Ⅰ and Ⅱ) have lower REE content, magma formation temperature, εHf(t), higher δEu and oxygen fugacity than the later stages (stage Ⅲ and Ⅳ). By collecting the previous Sr—Nd—O isotope data, combined with the Hf isotope data made in this paper, the simulation analysis of the source area of the Qingyang—Jiuhuashan complex pluton shows that the proportion of mantle sources in the magma chamber in four stages from early to late gradually increase. Conclusions: We find that the Qingyang—Jiuhuashan complex pluton were derived from crust—mantle mixed source, where gradually increased mantle components. The four stages melt all experienced distinct minerals fractional crystallization (FC), such as titanite, amphibole, rutile and plagioclase, and the late (stage Ⅲ and Ⅳ) granite melt experienced higher FC degrees than the early ones (stage Ⅰ and Ⅱ). Compared with stage Ⅲ and Ⅳ intrusions, The stage Ⅰ and Ⅱ intrusions of Qingyang Jiuhuashan complex pluton have better metallogenic potential of the W—polymetallic deposit.