Abstract: It is the pressing problem to solve that the dynamic mechanism of the Earth's plate movement,earthquakes and volcanic activity,the formation of rocks and the earth layer,as well as the Earth's resources and energy.On the basis of the role of the gravitational constant change for nuclide,and the principles of nuclear physics,the dynamic model of nuclear force has been established,the model is closely related and synchronization with the process of the universe evolution.This model has made reasonable explanation for above various problems.according to demomstrion for the Earth's structure energy release,with the decreases of gravitational constant,It is proved that the radioactive decay of nuclides is the release of the Earth's structure energy.Demonstration and quantitative calculation for the chemical binding energy of the mantle rock,and it is a absorption of nuclear decay energy.That the gravitational constant reduce has been proved has the role of internal consistency for universal macro and nuclei micro,and the role for the macro and the micro is uniformity.The conclusions Obtained for the stability or non-stability of the structure of nuclei is relative.