对一种新型Ｔ形边缘场致发射体进行了静电分析，给出了一个三极管单元的数值计算结果．在静电场的计算中采用了一种新的数值方法——非正交有限差分算法，由于所取坐标轴与边界重合，所以该方法能有效地处理任意形状的场致发射体．文中给出了场强及发射电流与几何结构因子的关系曲线、轨迹图及ＩＶ特性曲线，并对制备提出了一些参考意见 Electrostatic analysis of a novel T-shaped fringing field emitter shows the numerical results of a triode cell. In the calculation of electrostatic field, a new numerical method, the non-orthogonal finite difference algorithm, is adopted. Because the coordinate axis is coincident with the boundary, the method can effectively deal with field emitters of arbitrary shape. In this paper, the relationship curves of field strength, emission current and geometrical structure factor, trajectory and IV characteristic curve are given, and some suggestions for preparation are given