This master's thesis deals with a preparation of a qualification training for social workers that work with a client in crisis. It examines what are the requirements for the social worker and his range of further training. It also focuses on a social worker custody to a client who found himself in a crisis situation. It solves whether, and how the social workers are prepared to these difficult situations. Theoretical knowledge, as a type of client, koncept and types of crisis situations and attitudes and competences of a social worker to the solution of the crisis, are used in practical part of this master's thesis, which is made up of case reports with subsequent analysis. In conclusion the importance of the knowledge and skills of social workers are documented by questionnaire. Using the comparative method, I would like to highlight the developments in this field during the last five years. For comparison is outlined the care for a human in crisis in Switzerland and Bulgaria. The goal of my thesis is to make this field more approachable not only to social workers who encounter people in crisis in the course of their work, but also to all people who may find them- selves in crisis