In the framework of the training of specialised translators, the teaching of scientific and technical translation is becoming increasingly important. The great development of science and technology, the media, international relations and commerce are some of the factors which have contributed to this situation. The purpose of this article is to suggest an adequate methodology for the training in scientific and technical translation. To achieve this goal, the authors consider the characteristics of scientific and technical texts, the students, the documentation techniques, how to fully understand the specific knowledge and how to overcome the barrier of specialised terminology.