This paper proposes an innovative distributed fiber squall line wind speed measurement method, aiming to solve the problem of insufficient monitoring accuracy of existing technologies in complex environments, especially the failure to fully consider the influence of factors such as line aging, structural fatigue and environmental interference on the measurement results. This method integrates multiple distributed optical fiber sensing technologies, such as Brillouin Optical Time Domain Reflectometry (BOTDR) and phase-sensitive Optical Time Domain reflectometry (Φ-OTDR), and realizes the synchronous monitoring of wind speed in long lines considering the wind load of the lines. To verify the effectiveness of this method, this paper selects the three super typhoons (Craton, Tammy and Connie) that hit Fujian Province from September to November 2024 as the research objects. The experimental results show that the proposed method is superior to the traditional methods in both spatial resolution and temporal response in wind speed measurement. It can reflect the dynamic changes of squall line wind speed in real time and accurately, verifying its application potential and reliability in practical engineering.