Understanding the so-called structure-property relationship is the major concerned in in material science, it is analogous for surface structure and its corresponding property as well. Oxide surfaces tend to form complex systems for their possibilities in developing various stoichiometries different from bulk chemistry formula, multi phased in same structures even in particular chemical ratio. The nonstoichiometric defects on top of surface are prevalent in response to surface stabilization and environment, which furthermore contributes to the surface complexity. Therefore, understanding oxide surfaces remains an enormous challenge for surface science, especially at higher temperature, where the entropy plays a non-negligible role.The development of Transmission Electron Microscopy (TEM) provides the new opportunities on surveying those interface interaction, which was not feasible in the common surface science techniques. In addition, advances in electron optics instruments especially the invention of TEM CS corrector and high temporal resolution image recording systems have enabled rapid imaging with picometer precision in atom location and the dynamic processes at atomic scale resulting to the surface reconstruction for almost all kinds of atoms. This study focusses on Tasker I and Tasker III oxide surface, ZnO polar and SrTiO3 (001) nonpolar surface specifically. A particular negative spherical aberration (CS) imaging (NCS) technique in HRTEM mode is applied for in-situ heating observation, which give fair quantitative information of surface reconstruction dynamic. The (000±1) polar surface of ZnO is studied systematically by TEM profile view. ZnO (000±1) polar surfaces both shows clear relaxation at 1st layer from NCSI-HRTEM images. The spacing ratio is determined at atomic scale from surface to inner bulk. 1st layer surface vacancies for stabilizing polar surface at room temperature as predicted in the simple electrostatic mode and theory calculation is validated by quantitative analysis on atom columns intensities. This study provides unprecedented picometer precision survey of ZnO polar surface structures. It is generally accepted that the evaporation and crystal growth rates of ZnO squared are extremely anisotropic, and squared fastest on Zn-terminated polar ZnO(0001) surfaces at high temperatures. From direct atomic observation and simulation of dynamic processes on a polar ZnO(0001) surface during evaporation, the evaporation of the (0001) polar surface accelerates sharply at about 300 °C, with the spontaneous formation of nanometer-thick quasi-liquid layers. This structurally disordered and chemically zinc-poor quasi-liquid originates from the formation and diffusion of zinc vacancies on a stable (0001) polar surface (001) SrTiO3 surface has been surveyed by diverse surface sensitive diffraction and spectroscopy methods for decades but raised structures are widely diverse even contradictory. Here we propose two mixed surface non-stoichiometry (2×1) reconstructions composited with Sr, Ti and O together by various TEM methods including spectroscopy at atomic scale and rationalized by DFT calculation. Those two structures are transferable from each other by the underlying subsurface oxygen vacancy with low migration barrier, as captured by in-situ TEM movies. The dynamics NCSI-HRTEM movies reveal the real time interstitial Ti formation accompanied with Sr vacancies formation upon the exposed pristine SrO surface.