The article deals with the problems of developing the emotional intelligence of preschoolers through a subject-developing environment. The author offers diagnostic methods that reflect the importance of the development of emotional intelligence of children from school age.

Emotional intelligence is the ability of a person to understand their own and other people's emotions and adapt to their emotional state. Currently, questions are being raised about the development of inferior skills. Therefore, it can be seen that the implementation of measures at all levels of education aimed at developing children's skills of emotional self-awareness, self-regulation, motivation, empathy, effective interpersonal communication, critical understanding and manifestation to others, self-control, self-regulation, the ability to feel the emotions of others, empathy and communication, is a necessity of the current day. In recent studies, scientists have found that people with a well-developed EQ-emotional intelligence are 4 times more successful. Indicators: Health, Success, Wealth, Discipline. In Western countries, educational programs are developed and implemented in school practice, aimed at developing emotional intelligence in accordance with the age characteristics of students.

For business people, emotional intelligence is becoming a new business management tool.

The theory of" development of management skills "shows the relationship of" soft skills " – "soft" skills with emotional intelligence. The research of many representatives of neuropsychology and cognitive, social psychology, the opinions of successful people with a global reputation, as well as the experience of leading companies prove that the ability to manage emotional intelligence leads to success.

In the course of the study, we found that the development of components of emotional intelligence of preschoolers, the ability to express and identify their emotions, depends on the emotional state of the child and the experience of emotional communication with adults.