The article describes the key features of monologue and dialogue speaking skills development within the course of English for specific purposes (ESP) in higher educational institutions of engineering implemented on the basis of blended learning. According to the latest Federal state educational standards of higher professional education the share of students’ self- study increases. Thus it is vital to work out a system of exercises including preparatory and communicative assignments as well as Speaking Guide which is a special unit of speaking exercise tips and comments. Such a set of exercises being used in an ESP blended learning model, Speaking skills are formed and developed in a more efficient way.