The aim of the project "Design of Robot as Assistive Technology in Treatment of Children with Developmental Disorders", is to develop an assistive technology aid to improve the work with children age of 5 to 7 with developmental disorders. The intention is to take advantage of the child’s existing capabilities with the aim of developing its maximum potentials through play and entertainment. The application areas are: mastering of basic life skills, communication, visual, auditory and tactile reception of information, cognitive abilities, social interactions, mobility, and child’s emotional functioning. In the picture: Robot Marko and a reflection in the mirror of one member of designers team, seems to remind us that during the work on project all ethical issues related to work with humans will be respected.