The prime objective of this article is to analysis about Linear Actuator. A linear actuator is a tool that works by converting energy (which is nonlinear) into motion (which is linear). These actuators use a multiplicity of power sources, such as electricity, heat and air pressure. Dissimilar types of actuators are used for dissimilar purposes based on their output, potential, power needs, and size. There are plentiful machines and processes which use linear actuators, ranging from the tray on a DVD player to the hydraulic lift in an auto restore shop. No matter the size, the standard behind all of them is the same: a small, nonlinear energy source is magnified and changed into linear motion. Every power source has a dissimilar change mechanism, such as a pressurized fluid input or rotary motion.