This paper gives overview of hydroforming technique, its history, and its position in the forming process, classification, advantages, limitations, and implementation. This technique gives idea to manufacture the components of light weight, complex geometry. This technique uses hydraulic press as machine to produce different components. This technique consists of several different sub techniques. Different sub techniques help us to form different components of automobile & aircraft systems, etc. This technique is used to improve fuel efficiency & to reduce mass of automotive components.