«Tengri –The Sky». The political structure and system of the Turks power were systematised by knowledge of Tengri. The political structure, the authority system and military science were based on three basic systematized components. Namely, it is threefold union “Tengri-Person-Earth”. What was the political structure and authority system of ancient Turkis? On basis of knowledge the world in a Trinity «1.Teŋіri > the Sky - 2.Kisi oγulï > the Son of human - 3. Jer > the Earth», the state must be ruled by one Kagan. The text: “Őze Kök Teŋіri asïra yaγïz Jer qïlïntaquda ekin ara Kisi oγulï qïlïnmïs kisi oγulïnta öze ečüm apam Bumïn qaγan Estemi qaγan olurmïš olurupan Türük budunï γ Elin törüsün tuta bermis iti bermis” - When the blue sky above and the brown earth below were created, between them a human being was created. Over the human beings, my ancestors Bumin Kagan and Istemi Kagan ruled. They ruled people by Turkish laws, they led them and succeeded”. Here the Turkic outlook is very clearly expressed. In given union “Türük Teŋrisi – the Turkic Tengri” is the highest side of the Trinity. The given concept is not a totem, fetishism, or something mythological, divine, prophetical. The Turkic Tengri is “heavenly space, the round world as cupola over our heads, a light dome». In a word, Tengri means heavenly blue space opposite to the earth.