Research conclusions: For the maximum instantaneous wind speed in the area where is 4 m high from the rail surface along the high － speed railway，the level distribution feature of the design value V4_2max of the maximum instantaneous wind speed biennially is basically the same as that of the design value V4_30max of the maximum average wind speed every thirty years． In this paper，it is proposed the design value V4_2 max of the maximum instantaneous wind speed biennially in any place where is 4 m high from the rail surface along the high － speed railway is the master control factor for determining the strong wind region，and the included angle ( β) between the line orientation and the main wind direction and the deflection angle ( smaller than 10° ) of the strong wind regions of the high － filling embarkment，the viaduct and the curved conduit of bridge must be gradually optimized． The strong wind ( gust) coefficient is calculated with the linear regression equation of least square method，getting good effect． Therefore，it proves the optimal scientificalness of the disaster prevention and distribution principle of the safety monitoring point in the strong wind region along the high － speed railway，and representativeness and reliability of the acquisition of data on the instantaneous wind speed and wind direction． It can provide the reference to optimizing the monitoring point distribution plan of the strong wind region along the high － speed railway in China and instituting the technical standard and criterion for the wind fence distribution．