To address the core issue of the lack of physical mechanism explanation in relativity, a solution is proposed to construct a "relative absolute spacetime view" by reconciling "absolute" and "relative". The necessity of an absolute stationary system is logically demonstrated: The system with the smallest degree of freedom in motion, the system that is most difficult to obtain acquired motion, and the system with "no displacement space" (such as the centroid system of a total galaxy and the cosmic background radiation framework) all point to a logically absolute stationary frame. Based on the longitudinal traction difference between photons and electrons revealed by Jones' experiment, a "geometric optical velocimeter" was designed to calculate absolute velocity and verify the existence of absolute motion by measuring the deflection angle of photons and electron rays. By assuming that the clock in absolute motion slows down, the contradiction between relative and absolute is quantitatively reconciled. The Jones experiment actually proved that the gaps in the hollow glass disk are ineffective in pulling photons. It is equivalent to proving that, relative to photons, the vacuum space inside a moving train carriage does not belong to the same inertial frame as the body of the train. Hafele Keating experiment proved that "different approximate inertial frames are not always equal". Both of these situations pose challenges to the principle of special relativity.It is proposed that physics research should follow a spiral upward path of "absolute → relative → relative-absolute", breaking through the binary opposition between classical absolute spacetime and special relativity. It can provide new explanations for the Michelson-Morley experiment and a new paradigm for spacetime theory.