The principles and methodology of a scientific drawings preparation in entomology are presented. The stages of fulfillment both total insect and taxonomically important parts of body are considered in detail. The drawing preparation stages from contour to color image of an object are considered. The methods of scientific illustrations both manually and fully in a graphics editor Photoshop are described. The method can be used for fulfillment of illustrations of any biological objects, both in zoology and in botany. Full version of PDF you can download also from