The weather situation and the physical quantity in a gale weather process generated by high-altitude cold vortex induced Bohai cyclone of Shandong Province on April 26, 2010 were analyzed. The results showed that the divergence, vertical velocity, (total) temperature advection, vorticity advection performance for the high-level and low-level anti-phase vertical distribution characteristics before gale occur, and reverse mutation occurred when strong winds occur. The ground low-pressure tail, coupled with the high altitude vortieity advection, high level jet stream, warm sea surface cyclone heating were the key to the formation and development of ground cyclone, and the upward movement maintained by pricipitation latent heat was the favorable condition for further development of cyclone. Strong sinking motion in middle and low altitude provided dynamical condition for the increase of ground wind speed, high-voltage was strengthened behind the cold front and pressure gradient was increased obviously by high strong cold adveetion, swing wind directly led to ground occurrence gale process. Deep and strong cold advection of high altitude in the vertical direction controlled the troposphere middle and below, in favor of momentum transmission'with large surface wind speed.%对2010年4月26日山东省一次高空冷涡诱发渤海气旋产生大风过程的天气形势及物理量进行了分析。结果表明：对于此次冷空气大风过程，大风发生前散度场、垂直速度、（总）温度平流、涡度平流为高层与中低层的反位相垂直分布特征，并在大风发生时发生逆向突变；地面的低压尾部，加上高空的涡度平流、高空急流、暖海面加热是地面气旋能够形成并发展的关键，降水凝结释放潜热维持上升运动是气旋进一步发展的有利条件；中低空强的下沉运动为地面风速加大提供了动力条件，高空较强的冷平流使冷锋后高压加强，冷锋附近气压梯度增大、变压明显，变压风直接导致地面出现大风过程；高空深厚且较强的冷平流在垂直方向上控制了对流层中下方，有利于动量下传加大地面风速。
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