This paper rises as research problem of the relationship between epistemology and education of technology. We present three objectives: a) construction of a proposed epistemology of technology, b) identification of the conceptions of technology has a group of engineering students, through a survey, and c) the approach of a model for teaching-learning technology. The findings determine: a) an epistemological model for technology from the paradigm of complexity, b) that conceptions of mainly students take science as true knowledge, theoretical and empirical testable, with an application or production of devices called technology, so that the technology lacks knowledge and methods, and c) the didactic model that responds to the complex epistemology of technology is the focus of relations between Science-Technology-Society-EnvironmenT.