Аннотация:  
This article presents the play-based test on social intelligence (PTSI) in preschool and elementary school children. The advantage of this method over traditionally employed methods is that it does not rely on the mature symbolic function. Preschool and elementary school children find it difficult to adequately react to questionnaires that require interpretation of pictures. In contrast, PTSI employs a simple play situation, easily accessible to 6-12 years old children. This situation allows a sensitive assessment of degrees of social intelligence in children while engaging them individually in an exciting play. The situation requires the participant to find the best strategy for solving a problem, report information to a partner, while making this information inaccessible to strangers and avoiding direct deception at the same time. Complemented by an external assessment of social intelligence, this test can be a useful diagnostic tool for determining strengths and weaknesses in children’s resolution of interpersonal problematic situations, including conflict of interests.