This paper introduces the derivation process of Einstein's two methods of proving Lorentz transformation, the simple method and the coordinate method. It is pointed out that the main problem of the simple method is that the original condition is the only zero solution, that is, x, t, x', t'are all 0, in order to conform to the equations set by Einstein. Such an operation has no mathematical or physical meaning. The simple method of proof is not valid. The main problem with the coordinate method is that the partial differential equations listed by Einstein cannot be deduced at all. Of course, the latter calculus doesn't make any sense. The proof method of coordinate method is also not valid. It is pointed out that the main problem of Математический анализ дроидов's proof of Lorentz transformation is that the space-time interval invariance is derived from Lorentz transformation and cannot be applied as a condition. The origin coordinates of the moving system belong to time-like space-time, so the origin coordinates of the moving system (0, t') and the implicated velocity v cannot be solved in the linear equations.