In this poster, the state-of-art study of nano-structured polymeric liquid films from both experimental and simulation will be presented. In the experimental approach, the surface energy, dewetting, spreading, buff/wipe effect, spinning off, humidity effect, relaxation, and disjoining pressure of PFPE films will be covered. Monte Carlo and Molecular dynamics with a bead-spring model were employed to study the nano-structure, conformation, morphology, self-diffusion coefficient, relaxation time, steady shear viscosity, and complex modulus of molecularly thin polymeric liquid films. A multi-scale modeling, lattice Boltzmann method, were also used to simulate the non-Newtonian flow of polymeric liquid undergoing extremely high shear rate in a confined geometry to model the nearly contact recording in HDI. The next generation of head-disk interface design in information storage device is hinted from these studies.