Abstarct: Iran is located in a region considered as one of the earthquake-prone regions of the world. Several earthquakes occur each year, and in some cases, cities have been devastated. This has made researchers to constantly seek an ideal system to confront with lateral loads. The most important parameters contributing in the selection of a system resistant to lateral loads include: suitable stiffness, strength and plasticity. In recent years, utilization of steel shear wall changed from an idea into a lateral-load system accepted by bylaws, due to its suitable stiffness, high plasticity, simplicity of construction, high performance speed, and low cost. Moreover, in recent years, mixed mextal columns have provided a new generation of structural systems in most countries of the world. The system tolerates gravity and lateral loads given the appropriate mixed concrete-steel behaviour. Concrete composite column is one of the different types of composite columns exploited in constructs. Such composite column is made up of structural steel sections filled with normal-weight or light-weight concrete. Due to containing concrete, these columns have higher load capacity, displacement, and stiffness. Therefore, such a system can be a smart strategy to improve the function of constructs and optimize the sections. In this research, using square and circular columns with normal-weight and light-weight concrete, 7 cubic and 5 circular samples of columns with different sections were modelled by the finite element software Abaqus, and several parameters including the final stiffness, plasticity, and resistance were evaluated and compared. The results showed that by replacing circular columns with square sections, a relatively higher stiffness and plasticity can be obtained. The use of light-weight concrete instead of normal-weight concrete subtly decreases plasticity and stiffness. Furthermore, displacement in compressive mode of the column under lateral loads is much less in circular sections than square sections. This change was unidentifiable in samples with normal-weight concrete and light-weight concrete.