Mental issues gained a new meaning in the light of social and cultural changes early XXI century, it becomes a tool for interdisciplinary study of the social and human processes.Broadly mental space presents the functioning of individual and social consciousness and his condition is determined by the content of such concepts as «mentality», «identity» and axiological foundation functioning society. In the mental space of just mentality mindset is constant basis for determining the individual and society courses, values, value- regulatory guidelines.The structure of the national mentality contains a lot of levels and components, but, in our view, attribute values are as follows: – «archetypal» component mentality – system components archetypes and the collective unconscious; cognitive component – the image of the world and ways of thinking collective subject; value-semantic component – values, values orientation, ideals and regulations; emotional component – evaluation, emotions, feelings; behavioral component – the motives and behavior. It is noted that each of these components has an unconscious and conscious level, through national mentality phenomenon affects stable and unstable structural state. All this forms the so-called «mental space», which is a set of values basics mentality sphere of operation and its results expressed in the formation of social and cultural identity.Mental space has several basic centers (points) on which is identified members of society, and circulates the mentality of the individual. Powerful external influences / changes (economic, political, national homogeneity environment, etc.) or the emergence of crisis (unsteady) mentality cause mental space transformation of society, as reflected in the development of new mental structures and updating existing content. Changes occurring mental space according to the trends of society. Mental space postmodern Ukrainian society undoubtedly marked remnants of the Soviet era which essentially is a combination of opposite qualities, on the one hand, low self- discipline, disunity, legal nihilism, paternalism, extremism, intolerance, and on the other, tolerance, excessive patience, judgment, adaptability, creativity, receptivity to new, generosity, sense of duty and the pursuit of high morality. The basic causes inhibition of modernization of Ukrainian society related to the spiritual sphere, which is an integral basis of changes in Ukrainian society, defined The priority objective of this process – the formation of the new man and the new community.One of the key issues of the spiritual life of Ukraine is to overcome an identity crisis. Modernization of Ukrainian society depends on the socio-cultural identification of its members. However, keeping a national, ethnic, civic identity, it is important to overcome as a relic of the past regional distribution of people and the state, which should be the basis for social integration based on shared values and goals. Overcoming the crisis of identity and should contribute to the consolidation of Ukrainian society and reduce its conflict, and the growth potential of the life of the people and the state as a whole. A society where consensus regarding its spiritual foundations which are recognized and accepted by all members of society – can be seen as a stable system capable of constructive changes since eliminated the main source of internal contradictions regarding the consistency and focus of future development. Today we can say that the destruction of the old model of identity in Ukraine actually occurred, but instead a new model of socially legitimized and enshrined option is not yet fixed. In addition, existing efforts to design a new model of identity is often possible to trace the identification of national and ethnic identity that from a theoretical point of view is incorrect, and on a practical level – false.Complicated geopolitical situation, destructive political events, prolonged situation of«fuzziness» of values shifted the emphasis today in the Ukrainian society available is fluctuating identity that actualizes the problem of traditional spiritual values, goodness, freedom, justice, conscience, mutual respect, human dignity, humanity, family values, etc. In today’s extremely dynamic world mental space Ukrainian society is prone to transformation. However, talking about a substantial change in the mental space of Ukraine is not correct, it certainly incorporates new meanings and values, but deep initial interpretation is not lost.