在经典Maxwell方程组的基础上，利用四维空间矢量和四维电磁场张量的变化规律，将Maxwell方程组Lorentz表述的场方程组变换成四维张量形式，证明了Lorentz表述四维张量形式的特点，验证了Maxwell方程组的协变性以及Lorentz表述的四维张量形式的对称性，从而更好地解释了电磁场的运动规律。通过列举实际算例验证了本文算法的实用性和有效性，简化了运动介质相关的问题，体现了在解决运动介质方面问题的优越性，为运动问题的解决提供了一定的帮助。

In this paper, we transform the Lorentz expression of Maxwell’s equations to a four-dimensional tensor form by defining vector potential, scalar potential, the four-dimensional space vector and the electromagnetic field tensor. The result can better explain the movement of the electromagnetic field and verify the invariance of Maxwell’s equations and the symmetry of the Lorentz expression of the four-dimensional tensor form. By listing actual examples we can verify the usefulness and effectiveness of the arithmetical method. At the same time, it can simplify the problem of a moving medium and provide some assistance in solving the movement problem, which demonstrates its superiority over the traditional form.