Einstein mentioned in his later review that his thoughts on special relativity mainly came from the incompatibility between Maxwell's equation and Newtonian mechanics, and the characteristic that the speed of light in the equation was always constant. Although I was aware of the negative conclusion of the mcpherson-Morey experiment, I didn't pay attention to it. The Lorentz transformation in this paper is derived by ourselves, without reference to Hendrick Lorenz's paper.