The article reveals volunteering as an activity carried out voluntarily for society or specific social groups, without expecting a reward. An analysis of domestic research on the phenomenon of volunteering has been conducted, and the multifaceted nature of volunteer activities has been determined. It has been substantiated that volunteering contributes to the formation of communities, solidarity, and positive changes in society, providing people with the opportunity to develop their skills, gain new experiences, and learn to communicate with others. Approaches and methods that can be used in volunteer work have been highlighted: active learning, the case-study method, group work, mentoring and coaching, game-based approaches, etc. It has been found that training technologies are characterized by their ability to help people develop and learn in the modern world through emphasis on practical application, interaction, and personalization. An important feature of training technologies is their interactivity, which allows participants to listen and perceive information during the training process and actively engage in learning through exercises, mini-lectures, discussions, role-playing games, and other methods. Examples of successful practices in volunteer work using training technologies have been provided, the subjects of trainings for volunteers have been analyzed, such as «Identifying Needs Strategies», «Effective Project Management» and other.