The diploma thesis on the topic of a stylized acting deals with a stylization as a form and an instrument during a process of theatre performance creation. In the beginning it is explained, how the term stylization acts in various branches of human activities, then the work focuses on a stylization application in a theatre art. First part is aimed at a form of performance and its components, as it is influenced by the stylization, then how the performance components impact an actor and help his dramatic appearance. Second part describes the actor and his relation to a scene, costume, character. It is about how is the actor, as the main motive power, able to liven up other performance components, what instruments he uses, how he fulfills the primary intention. It is also mentioned, how significant is actors humanity, his consciousness and unconsciousness, his personality, during his performing as the character. The work contains concrete examples of performances in which stylization was used.