The traumatic narrative as a raw material for theoretical and experimental research of traumatic memory is represented in the article. The traumatic and non-traumatic experience is differentiated in the article. Emotionally negative and positive life events are represented in autobiographical memory and expressed in the autobiographical narrative. The traumatic events are represented in traumatic memory and verbalized in the traumatic narrative. We report that stressful traumatic events as a part traumatic memory are in the mediating zone between autobiographical memory and PTSD. The propositional analysis is used as psycholinguistic methodology for traumatic memory research. Each propositional tree is divided into two subtrees: a context subtree and a fact subtree. Further fact is divided into agent (they, he/she/it) and predicate, represented by relation and object (patient). The context is explicated by time and place. Presupposing the great significance of the role of self and others in the positive, negative and traumatic life events, we differentiate internal (I, we) or external agents (they, he/she/it) and internal (me, us) or external (them, him/her objects (patients). The significant differences in propositional units and number of words in traumatic narratives vs. autobiographical narratives were revealed. It supports the idea of different ways of coding and representation of thee life events: emotionally negative, emotionally positive and stressful traumatic. Moreover it allows revealing the hot spots in the traumatic event and situation expressed by the most frequent propositional units and therefore optimizing the therapeutic process for PTSD treatment.