The article is devoted to an urgent issue – the peculiarities of teaching a foreign language online. It contains detailed research of its advantages and disadvantages and stresses the importance of introducing new online methods and aids to potential teachers at pedagogical universities to face the realities of modern education. Considering the current tendencies in teaching worldwide it is important for students who are trained to be teachers of foreign languages to participate in the WorldSkills Russia championship in the block “Teaching a foreign language online”. The article shows the experience of participation in the competition, a step-by-step analysis, representing teaching methods and techniques of each unit. The championship lasts for two days and consists of four units, two for each day. The students are volunteers who have their own roles. Each participant has a compatriot who guides him/her. The first unit deals with interviewing a potential student, finding out the level of the language, the goals of studying. The second unit is devoted to making up a draft of the lesson, teaching aids, finding the material resources, and timing. The made-up online lesson is given during the third unit. The final fourth part of the championship allows the participants to analyze the overall experience and fill in the form. The participation in the championship proves the effectiveness of teaching a foreign language online, allows to motivate and support a student, apply various teaching aids, methods, and techniques. The enumerated aspects of teaching online help to achieve high results in studying a foreign language.