中、低纬电离层Ｆ层动力学的数值模拟通过研究等离子体的连续性方程和运动方程进行．等离子体的输运过程在电磁漂移的运动坐标系中运算．计及双级扩散、温度、中性风、电磁漂移等影响．假设地磁场为偶极子场．氧原子为主要成分．结果表明：在磁静日时，赤道异常现象仅在白天出现在磁扰日时，当在向电场足够大时，可引起沿场排列不均匀结构，在夜间也可以出现赤道异常现象． Numerical simulations of the F-layer dynamics at the middle and low latitudes are conducted by studying the continuity equation and the equation of motion of the plasma. The plasma transport process is operated in a moving coordinate system of electromagnetic drift. Taking into account the two-stage proliferation, temperature, neutral wind, electromagnetic drift and other effects. It is assumed that the geomagnetic field is a dipole field. Oxygen atoms as the main component. The results show that the equatorial anomaly occurs only during daytime at magnetic disturbance day, and when the electric field is large enough, it can cause uneven structure along the field and anomalous equator at night.