Given the fact that many nationalities live in Afghanistan, state-nation building priorityis the greatest concern of political elites of Afghanistan. When former Soviet Union invaded Afghanistan in 1978, and internal war occurred the country was at the center of the foreign policy of the super powers. Society, politics and governance has faced crisis.Upon collapse of Soviet Union and the end of the Cold War in the 1990s, Afghanistan was forgotten by Western governments. However, when al Qaeda, Network the under patronage of Taliban Organization, attacked US interests in Africa in September 1998 plus World Trade Center in the United States on September 11th, 2001, US and its allies have changed their foreign policies regarding Afghanistan. The plan of new structure establishment on the basis of Liberal Democracy teachings and state-nation building, also, formed as the fallen of Taliban regime in Afghanistan and political –semi military groups with mediation of USA were invited in Bonn of Germany. The outcome of this summit resulted in signing Bonn Agreements and adapting liberal democracy within eight constitutional law. It was expected that these doctrines would overcome previous unbalanced experience of left and right radical regimes, and that inclusive state-nation building would be an acceptable process for all citizens. However, soon it was uncovered that the modern system; liberal structuralism, was in a direct confrontation with traditional functionalism. Therefore, the reason of this process is examined in the framework of systematic analysis (system input, policy planning, policy implementation, outcome, and evaluation).