Nature of tourism presupposes meeting the needs of producers, consumers and the entire society based on trust. The phenomenon of trust in the sphere of tourism is only being established in the process of formation of tourism as a socio economic phenomenon, whose tangible forms started to be perceived only early in the twentieth century. Ever changing and unpredictable market factors influencing the functioning of tourism enterprises sharpen the problem of trust. Besides, the role of trust is becoming dominant in the periods of crisis as far as trust plays an essential role in the development and recovery of sales and travels. This paves the way to our interest to actualization of trust in the sphere of tourism. The first part of this research overviews publications of foreign and Russian authors with view to receiving a complex knowledge about trust phenomenon. In the second part of it when looking into academic and empirical researches we discovered peculiarities of trust in tourism and formulated the author's understanding of trust. The purpose of this research is to make the contents analysis of foreign and Russian publications and get a complex knowledge about phenomenon of trust as a polymeric construct integrating social, economic and psychological aspects.