RCC walls are used worldwide to resist loads due to gravity and earthquake. Many of the tall buildings had buckled during recent earthquakes due to poor design and construction practices. When the RCC structure is subjected to axial compressive loading it fails due to buckling. The objective of study is to predict the linear and non-linear buckling behaviour of RCC walls using the finite element model. This paper investigates the effect of various parameters that influence the behaviour of the wall. These parameters include; slenderness ratio, percentage of reinforcement. Different percentages of reinforcement with constant slenderness ratio for a wall is analysed through ANSYS 15.0.