The development of critical thinking in the learning process is an important factor in educational reforms in Ukraine. In particular, the Law of Ukraine "On Education" states that "common to all competencies are the following skills: reading comprehension, the ability to express their opinions orally and in writing, critical and systematic thinking, the ability to logically justify their position, creativity, initiative, ability to adequately manage emotions, assess risks, make decisions, solve problems, the ability to communicate and cooperate with other people. Accordingly, the development of critical thinking becomes the basis for the formation of a modern student of the New Ukrainian school as a thinking, creative, creative, educated person. The orientation of primary school on the introduction of information and communication technologies in the educational process determines the search for modern dynamic, bright, appropriate visual aids. One such tool is a cartoon, which allows you to communicate new information in an accessible form, demonstrate behaviors, reason, draw conclusions, express their own opinions, and thus develop critical thinking of younger students. The article offers a number of techniques for the development of critical thinking of primary school children during the analysis of educational cartoons in lessons of various profiles in primary school. These are techniques such as: Bloom's Chamomile Questions, cluster technology, associative bush method, cubing technology, brainstorming, pair work, basket of ideas, openwork saw, discussion, PRESS method, senkan, fishbone, etc. An algorithm for introducing an educational cartoon into a lesson to identify a problem, and then worked on any of these techniques. It is proved that it is inadmissible to use only independent viewing of cartoons by children without using the discussion of what they have seen, because then critical thinking will not be formed. Key words: critical thinking, critical thinking technologies, development of critical thinking of primary school students, cartoon, cartoon as a means of developing critical thinking of primary school students.