Poly vinyl alcohol (PVA) have been used by many coating company. Because it has a high transparency, water soluble, non-toxic and low hygroscopic property. So it can be easily treated and have a long life time. In addition, PVA shows high anode capacity due to numerous hydroxyl group in polymer chain and high cyclic effect. Therefore it is a good material as a binder in coating process. The physical and chemical property of coating material is important to make sure the performance of film which is the final product of coating process. At this point, rheological analysis can represent its physical properties such as flow properties and Micro/Nano structure. In this study, Copper Nanowire (CuNW) and CuNW/silica suspension based PVA binder were investigated by rheological properties, especially Small and Large Oscillatory shear (SAOS and LAOS) test. Through the data from LAOS test, nonlinearity (third relative intensity) can be calculated by the FT-rheology Interesting result of the SAOS test, complex viscosity of CuNW/silica based PVA binder shows slightly low value of suspension without silica. This phenomena shows that silica can affect the alignment of CuNW in the flow condition. To make sure the explanation, LAOS tests were done as well. Through the LAOS results, Nonlinear Linear viscoelastic Ratio (NLR) value is calculated by Q parameter and G*. NLR value can be distinguished by two types. NLR of suspension with silica shows higher than 1. But NLR of suspension without silica shows lower than 1. The meaning of high value of NLR is that nonlinearity is more amplified than linearity and it is changed to disperse state. In addition, dispersity was figured out by optical method. So there could be relationship between NLR and morphology of film.