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In this talk, I present a theory of quantum gravity beyond Einstein. Thetheory is established based on spinnic and scaling gauge symmetries by treatingthe gravitational force on the same footing as the electroweak and strongforces. A bi-frame space-time is initiated to describe the laws of nature. Oneframe space-time is a globally flat coordinate Minkowski space-time that actsas an inertial reference frame for the motions of fields, the other is alocally flat non-coordinate Gravifield space-time that functions as aninteraction representation frame for the degrees of freedom of fields. TheGravifield is sided on both the globally flat coordinate space-time and locallyflat non-coordinate space-time and characterizes the gravitational force.Instead of the principle of general coordinate invariance in Einstein theory ofgeneral relativity, some underlying principles with the postulates ofcoordinate independence and gauge invariance are motivated to establish thetheory of quantum gravity. When transmuting the Gravifield basis into thecoordinate basis in Minkowski space-time, it enables us to obtain equations ofmotion for all quantum fields and derive basic conservation laws for allsymmetries. When the spinnic and scaling gauge symmetries are broken down to abackground structure that possesses the global Lorentz and scaling symmetries,we arrive at a Lorentz invariant and conformally flat background Gravifieldspace-time that is characterized by a cosmic vector with a non-zerocosmological mass scale. We also obtain the massless graviton and massivespinnon. We show a mechanism for quantum inflation caused by the quantum loopcontributions. The Einstein theory of general relativity is expected to be aneffective low energy theory. Two types of gravity equation are resulted.

Theory of Quantum Gravity Beyond Einstein and Space-time Dynamics with Quantum Inflation