The article substantiates the expediency of using narratives about technical phenomena in mechanical transmissions in the profile education of high school students as a means of forming technical literacy. Based on the methodology of the activity approach and the narrative way of interpreting technical knowledge, it was found that the operation of semantic information of technical content is the main condition for its perception and understanding by students. It was found that the stimulation of meaning making contributes to the activation of the humanitarian potential of technical knowledge. To master the knowledge of technical phenomena by high school students, it is necessary to choose the subject of interpretation, to include it in specific story lines. Having understood the explanation of the plot lines, students will realize the value-semantic aspects and study a fragment of the modern technosphere. It is established that the narrative explanation of technical phenomena in mechanical transmissions as the main elements of drives of working machines is organically intertwined in the context of the cultural concept of technological education of schoolchildren. The main learning outcomes of students will include experience of cognitive activity, experience of reproductive activity, experience of creative activity, experience of emotional and value relations. Emotional-value relations are acquired using reflection. The attitude of students to the object of knowledge is one of the main conditions for the transformation of technical knowledge into beliefs, which serve as a guide in the perception of the phenomena of the technosphere and contribute to the solution of technical problems. Technical ideas, beliefs and values will form the basis of technical literacy of high school students.