Abstract: Generally, silicone rubber has the ability to stretch and elongate at a very large deformation. Due to its behaviour, silicone rubber can be classified as hyperelastic material or rubber-like material. However, there is little research done to study the mechanical characteristic of this rubber-like material. Thus, this study aims to investigate the mechanical properties of the silicone rubber via experimental and analytical methods by adapting hyperelastic constitutive models which are Neo-Hookean and Mooney-Rivlin Models. Moreover, in order to determine its mechanical properties, uniaxial tensile test was performed to obtain stress, F-stretch, 8 relations. The specimens were prepared according to ASTM D412 standard. The experimental data were then employed in the hyperelastic constitutive models to obtain the silicone rubber’s material constants, C; the hyperelastic constitutive models were then analysed using analytical methods to be compared with the experimental method. It was found that Neo-Hookean and Mooney-Rivlin Models were incapable to best fit the tensile properties (stress, σ-stretch, λ curve) from the experimental method. Therefore, it can be concluded that both hyperelastic models which are Neo-Hookean and Mooney-Rivlin Models are unable to describe the tensile of the silicone rubber whereas another hyperelastic constitutive models can be employed to successfully describe the tensile properties of the silicone rubber and to obtain accurately its material constants.