The political thought of Niccolò Machiavelli is the most remarkable issues in the sphere of world politics. Due to his arguable political thought it is not possible to arrive at a common understanding in his works. Different thinkers interpreted his works differently in their understandings and they grouped him only from his particular work. Many thinkers consider him as advocator of tyranny due to his work in The Prince. On the other hand others grouped him as advocator of republicanism by considering his writing in the Discourses. Some thinkers consider him as a patriot that exhausted his whole life for his country. Some thinkers also consider his writings as inconsistent and unrelated to each other. Therefore, Machiavelli is one of the most misinterpreted thinkers in the world. I, the author, despite the controversies believed that Machiavelli had a political program of establishing republican system in Italy by considering the Romans republic as a model. He used The Prince asa necessary prerequisite to establish republican system in Italy. Therefore, my purpose in this book is to argue that the main goal of Machiavelli was to establish republican system in Italy.