In the field of hydrogen sensing, tungsten trioxide (WO?) hydrogen-sensitive films are widely used due to their advantages such as chemical stability, reversible reaction with hydrogen, high sensitivity, and high selectivity. However, in practical applications, WO? films suffer from issues such as insufficient long-term stability and degraded hydrogen-sensing performance under high-temperature and high-humidity conditions. To address these problems, this study modifies WO? films using sodium hydroxide (NaOH) and 3-aminopropyltriethoxysilane (APTES) to enhance their adhesion to glass substrates at high temperatures and provide more reactive sites, thereby maintaining good hydrogen-sensing performance in high-temperature environments. Additionally, a hydrophobic zeolitic imidazolate framework (ZIF-8) is spin-coated onto the surface of the WO? film to improve its hydrogen-sensing performance in high-humidity environments. The experimental results show that after the film is treated with 15 % APTES and 2.0 mg/mL ZIF-8, under 1% hydrogen concentration, the modified film exhibits an average sensitivity of 86.01 %, an average response time of 42 s, and a repeatability of 97.25 % after 15 consecutive tests. Compared with the unmodified film, the modified film can maintain favorable hydrogen sensing performance at a high temperature of 100 ℃. After being stored for 7 days, its sensitivity reaches 57.2 % and the response time is 67 s. After being stored in an environment with 85 % humidity for 7 days, the sensitivity is 78.5 % and the response time is 48 s. No obvious performance degradation is observed after being placed in air for 60 days.