分别从电容探测场的场强模型及电容目标探测方程两方面探讨电容引信的探测方向性．场强模型从静态电偶极子的角度来建立．分析了它的探测方向图特征，给出了电容引信的方向性函数及方向性因子．得出了电容引信的探测方向图是一个长短半轴相差不到20％的椭圆的结论。 The probing direction of capacitive fuze is discussed respectively from the field strength model of capacitance detection field and the capacitance target detection equation. The field strength model is established from the static dipole point of view. The characteristics of its detection pattern are analyzed, and the directional function and directional factor of capacitive fuze are given. The conclusion is drawn that the detection pattern of capacitor fuze is an ellipse whose length and half-axis differ by less than 20%.