This article summarizes the scientific achievements on values of praxeological approach, praxeological pedagogical principles in methodical preparation of the future music teacher to singing activity. The analysis of scientific sources and practical experience showes, that the effectiveness of music lessons, art extracurricular classes with students, the effectiveness of group work is ensured by successful teacher, facilitator of individual educational trajectory of the child. Methodical preparation of future music teachers to singing activity is based on values of praxeological approach. It provides a comprehensive analysis of musical and educational activity, its development for improvement of productivity, reasonable planning, rational use of time, effort and others. The usage of praxeological approach in methodical preparation and during teaching practice of future music teachers allows: to improve the content of the training material, to select the most effective innovation and creative forms, methods and means of vocal training, to intensify extracurricular work. Methodical preparation of future music teacher to singing activity is important to do taking into account the principles of perfect educational activity, in paricular, prediction of possible educational activity outcomes; planning the following actions, principles of singing study (integrity, adaptability, resonant sound formation, voice development and conservation, the principle of intensification, reflexive perception of music images, conscious support for artistic and personal dialogue. Focus on praxeological values in methodical preparation of future music teachers make it possible to witness close relationship of psycho-pedagogical, music, teaching disciplines with class, independent and individual work, teaching practice.