The theory of human-computer interaction is a new scientific direction today. Human-Computer Interaction (HCI) is a field of research and practice that developed in the early 1980s. Human-computer interaction (HCI) is an accompanying multidisciplinary field (e.g., engineering, psychology, ergonomics, design) that studies the theory, design, implementation, ways and methods of evolution of how people use computer devices and how they interact with them. Many researchers work to develop human-computer interaction. They represent a wide range of sciences: design, psychology, journalism ... Human computer interaction (HCI) specialists are in great demand in technology companies, which in turn influences the development of human computer interaction (HCI) training courses at universities. The paper discusses the basic theoretical and technological principles of HCI (Human Computer Interaction) human-computer interaction, based on the research papers of well-known scientists (Mandel Theo; Alan Dix; Janet Finlay; Russel Beale; John M. Carroll; Gregory Abowd; John Brooke; Jonathan Grudin; Emily LR Harriosn; Deborah Gail Tatar; Phoebe Sengers; Brad A. Myers; Christofer D. Wickens; John Lee; Yili D. Liu; Sallie Gordon-becker; Donald Norman; Elizabeth Churchill; Anne Bowser; Jennifer Preece; Gerard Jounghyum Kim; Hinze-Hoare Vita; Jakob Nielsen; Wilfred J. Hansen etc.) working in this field. The paper reviews the historical aspects of the development of human-computer interaction is; Its essence as a science is defined in the manuscript. The focus is on important aspects of human-computer interaction. Namely, the goals of human-computer interaction; Structure; Principles; Models; Systems; The principles of human-computer interface design are outlined, the importance of interface functionality and usability in the human-computer interaction process is shown; The concepts of interaction and interface are compared. Human-computer interaction approaches with current and future technologies are presented.