Abstract From the theory that a set of balance points which are on the surface of structural body in a natural balanced space form the curved balance surface of the body’s surface,the law of balanced curve distance and law of balance curved surface distance of a natural structural body in the natuiral balanced space are drived from the ‘law of balance point distance’ of structural.The ‘rotationoscillation effect’of ordinary structural body in the natural balance space is proved and the varying velocity,varying form and their cause and result of each other of rotating point,line,plane and body and their own oscillation are discussed.The ‘flattering effect with deceleration of rotation’ and ‘sphericizing effect with acceleration of rotation’ of the rotaling sphere and rotation oscillation are expoconded.According to above laws and principles the seismogenesis is explored and the combination rotationoscillation model of resonator for seismogenesis is put forward.
