In this research, micro-nano silica-silica nano-composite thin film was deposited on glass substrate by a sol-gel method. Then, the surface modification was performed by use of PFTS solution. The thin films were characterized by FTIR, EDS, FESEM, UV-Vis spectroscopy and water angle analyzer methods. Durability test was performed to check the resistivity of the thin film against environmental conditions. To study of UV-resistance, the modified thin film located under UV-irradiation for definitive period of times. Results indicated that average transmission at visible region (rang of wavelength 380-760 nm) increased from 90.2% for uncoated glass to 90.75% for coated glass. Also water contact angle measurement results showed that WCA of the modified thin film in comparison with uncoated glass increased from 73 degrees to 113 degrees. Moreover based on durability tests and UV-irradiation, stability of the modified thin film for practical application was acceptable.