An engineering drawing is a type of technical drawing used to define the requirements for engineering products or components. An engineering drawing is also referred to as engineering graphics. It is a most important aspect as it is a fundamental need to develop any design. It consists of sketching of actual component with respect to its dimensions.

Typically, the purpose of an engineering drawing is to clearly and accurately capture all geometric features of a product or component so that a manufacturer or engineer can produce the required item. It may also describe the process of making the item, may be used to convey engineering ideas during the design process, or may provide a record of an existing item.