The purpose of this study is to analyze Francesco di Giorgio Martini's architectural drawings of 'human analogy' on the basis
of historical background and to find out the relationship with Renaissance Humanism. Most of his architectural drawings are
based on Vitruvius's theory. However, there was a gap about 1500 years between Francesco di Giorgio and Vitruvius. There
were also mistranslations. For example, He translated Vitruvius's Human in Circle as anthropomorphism It is the difference
which is a key also key to understand his drawing characteristics, on which this study will be largely based. His distinctive
drawings and architectural theory will be seen in the concept of a priori ; the method of geometric division and the analogy of
human body as functions of urban and architectural planning.