The article summarizes the long artistic and pedagogical author’s experience. The features of the development of complete controlled breathing in the process of professional development of the singer are characterized. It is proved that complete singing controlled breathing develops only through appropriate training through the use of special exercises for the respiratory system. Original preparatory and rhythmic exercises for the development of breathing during singing have been developed and described in detail. It is convincingly proven that complete controlled breathing combines the advantages of different types of breathing - diaphragmatic, costal, and clavicular. With fully controlled breathing, not only the respiratory system as a whole is mobilized, but also the functioning of the digestive, cardiovascular and nervous systems of the singer's body is improved, which has a positive effect on the qualitative characteristics of the singing voice. The main conditions of breathing exercises are as follows: clean air; light clothing that provides freedom of the chest and neck; performing exercises before eating; inhale air through the nose; do not overload the lungs with excess air; breathe evenly and elastically; to stand simply, naturally, having taken back shoulders a little, but not to lift them; perform exercises with maximum endurance, attention and calm; avoid excessive muscle tension. In order to master the technique of fully controlled breathing, it is necessary to conduct more classes and train at home on the basis of an individual training schedule.