Since the generation and development of the freeze-thaw cycle damage is an extremely complex problem, the most cost-effective technique for mitigating freeze-thaw cycle damage and extending the service life of asphalt pavement is add modifiers. [PERSON] et al. studied the influence of freeze-thaw cycles on the high-temperature characteristics of SBS-modified asphalt. The results showed that the incorporation of SBS modifiers could increase the elasticity of the bitumen significantly and slow the tendency of the bitumen's complex shear modulus to increase with the freeze-thaw cycles to a certain extent [7]. [PERSON] et al. concluded that crumb-rubber-modified (CRM) asphalt mixture had the outstanding freeze-thaw resistance through F-T cycles [18]. Nanomaterials have a wide range of applications in many fields due to their unique production process and performance characteristics. Due to the huge surface area of inorganic nanomaterials, the incorporation of nanomaterials can increase the viscosity of the asphalt, increase the cohesion of the asphalt cement, and improve the mechanical properties of the asphalt mixtures. In recent years, many scholars have conducted research on the application of nanomaterials in the field of modified asphalt [19; 20]. [PERSON] et al. indicated that nano-CaCO\({}_{3}\) increased the wettability of the asphalt binder on the aggregate, promoted the aggregate-asphal interface bonding strength and disputed the F-T damage [21]. [PERSON] concluded that the addition of nano-clay and nano-time could reduce the moisture susceptibility of hot mix asphalt (HMA) and increase its durability under F-T cycles [22]. [PERSON] et al. found that nano TiO\({}_{2}\), CaCO\({}_{3}\) and basalt fiber composite modified asphalt mixtures had outstanding freeze-thaw resistance by measuring the mesoscopic void volume, stability, indirect tensile stiffness modulus, splitting strength, uniaxial compression static, and dynamic creep rate [23]. In summary, the addition of nanomaterials can effectively alleviate the impact of F-T cycle on asphalt. In previous studies, we evaluated the effect of nano hydrophobic silane silica (NHSS) on the degradation of asphalt mixture under F-T cycles, and established the damage model of NHSS modified asphalt mixture in spring-thawing season. Within this framework, the main goal of this paper is to evaluate the durability and property of nano hydrophobic silane silica modified asphalt under the Freeze-thaw aging process. To the authors' knowledge, the open literature has no experimental studies of nano hydrophobic silane silica modified asphalt subjected to F-T aging process. In order to investigate the deteriorating properties of nano hydrophobic silane silica modified asphalt under Freeze-thaw aging process systematically, the penetration, softening points, ductility test, rotational viscosity test, dynamic shear rheometer test (DSR), Fourier transform infrared spectroscopy test (FTIR) and thermogravimetric analysis test (TGA) were employed in this paper. The penetration, softening points, ductility test and rotational viscosity test are conventional physical property tests that explore the deteriorating properties of asphalt from the perspective of physical properties, and the DSR, FTIR and TGA test was applied from the perspective of rheological properties, chemical properties and thermal properties, respectively. The research plane flowchart is shown in Figure 1.