Understanding the mechanism controlling the Earth’s dynamic evolution is one important goal in Earth Sciences. Geophysics, Geochemistry, Geology and other subjects provide vital but spatially- and temporally-fragmented observations that have large uncertainties. Constrained by basic physical and chemical rules, Geodynamics aims at building simple models that unify various observations. During this course, the lecturer will first introduce the basic research strategies and methods of Geodynamics. Following that, the lecturer will briefly introduce the internal structure, thermal state, and shape and gravity field of the Earth. Several important geodynamic models, including plate tectonics, mantle hot plume, mantle convection, lithospheric flexure, faulting will also be introduced during this course.