Based on 3D seismic data interpretation, drilling core observation, sample testing, FMI and oil test data analysis, the differential deformation characteristics of Ordovician strike-slip fault zones in different areas of Tahe Oilfield are analyzed in detail, three deformation and evolution models of strike-slip fault zones are established, and their control effect on the development of Middle-Lower Ordovician large-scale reservoirs in different areas is discussed. The results show that: (1) Controlled by the transformation of regional tectonic stress field and the evolution of ancient tectonic pattern in Tabei Uplift, three types of typical strike-slip fault zones are mainly developed in the Ordovician of Tahe Oilfield. In the main area of Yoputai-Tahe, NNE and NNW strike-slip faults that are symmetrically conjugate cut in "X" shape, form closely integrated network, and are associated with primary and secondary faults, they are formed simultaneously in the Middle Caledonian, and the NNE faults were continuously active in the Yanshanian-Himalayan. In the central and western regions of Yuqi, the NE and SN strike-slip faults are asymmetrically conjugate, distributed in strips and intermittently respectively, and locally cut each other, they were initially formed from late Caledonian to early Hercynian and late Hercynian respectively, both of which were continuously active during Indosinian-Himalayan, and the NE faults were more active. In the southeast slope area, the NNE, NEE, SN and NNW strike-slip faults are distributed intermittently and the NNE, NEE faults limit the extension of SN faults, they were initially formed in the middle Caledonian-Hercynian, and the NE, NNE faults continued to be active in the Yanshanian-Himalayan. Affected by the Carboniferous salt layer, the shallow en echelon faults are not developed. (2) Based on the differential deformation, formation and evolution of three strike-slip fault systems, three types of typical reservoir control models of Ordovician strike-slip faults in Tahe Oilfield are established. Contemporaneous coupling type of epikarst+faults in the main area of Tahe Oilfield: supergene karstification coupling with activities of strike-slip faults from middle Caledonian and early Hercynian developed a large area of karst fracture-cave reservoirs under the T74 interface, and the reservoirs is more developed along the NNE strike-slip fault zone that was continuously active in Yanshanian-Himalayan. Inner karst+late fault reconstruction type in central and western regions of Yuqi: multi-staged supergene karstification in middle Caledonian-late Hercynian flattened the epikarst fracture-cave reservoir under the T74 interface, and most of the remaining cave reservoirs in the middle and lower parts of Yingshan Formation have been seriously filled. The large-scale effective reservoirs are preserved now due to the unfilled early inner karst reservoir superimposing the transformation of strike-slip faults in Indosinian-Himalayan. Fault controlled fracture-cave type in the southeast slope area: it is located in the Upper Ordovician coverage area. The supergene karstification is weak in the middle Caledonian, and the intensity of multi-stage continuous activity of strike-slip faults controls the development of large-scale reservoirs.