Zircon SHRIMP U Pb dating of quartz keratophyre is first time to report from the Tieshajie Formaion (1154±5 Ma),Mesoproterozoic. The quartz keratophyre and rhyolite from the Tieshajie Formaion, with high SiO2(73.53%~81.11%), low CaO (0.06%~0.11%), low Na2O (0.05%~2.77%), Al2O3(11.06%~13.96%), and K2O (2.16%~6.43%). The quartz keratophyre and rhyolite belongs to alkali rhyolite rock series showed in the classification diagram of Zr/TiO2—Nb/Y and calc alkaline rock series showed in the SiO2 — FeO/MgO diagram. The rocks have higher REE contents (182.48×10-6~818.82×10-6) with relative enrichment of LREE and negative Eu anomaly (δEu=0.20~0.45). The primitive mantle normalized trace element patterns are characterized by the depletion of the LILE (Ba, Sr, Ti, P) and enrichment of the HFSE (Nb, Ta, La, Ce, Zr, Hf, Sm). The εHf(t) values and two staged Hf model ages of the quartz keratophyre and rhyolite from the Tieshajie Formaion are -6.1~5.3 and -2.3~4.8, 1653~2380 Ma and 1675~2132 Ma. Zircon Hf isotopes characteristic shows that, the quartz keratophyre and rhyolite from the Tieshajie Formaion are products from the lithosphere delamination and mantle material upwelling, and partial melting of late paleoproterozoic crust materials. Synthetical analyze, the Tieshajie Formaion formed in a continental intraplate setting, postorogenic stage. It may be formed in cracking stage of intraplate rift of the Cathaysia, and products of mantle material upwelling.