Michelson morley experiment denies the existence of ether wind, rocky (Oliver w. f. Lodge, 1851-1940) in 1892, made of steel plate rotation experiment rejected ether by steel plate of traction, also indirectly negative ether by earth traction, the two experimental rejected ether.This experiment can prove that the etheric by earth traction,the Michelson-Morley Experiment on the relative motion to the earth: The light source is the green laser, with its wavelength 532nm. Compared to the original Michelson-Morley Experiment, the installation of this experiment is improved in two ways (as is seen in figure 1): Firstly, a parallel plane optical resonant cavity is added to the optical path in order to improve its sensitivity. As the times of the reflex in the resonant cavity is unknown, the sensitivity cannot be measured; Secondly, the stationary relative to the earth is changed to the rectilinear motion. The installation is placed horizontally on the high-speed train carriage with the shock cushion installed, which is made of multiple layers of sponges and slates. When the installation works in uniform linear motion, relatively to the earth surface at a speed of over 260km per hour, rotate it horizontally, and the move of optical interference fringe can be observed.