Abstract
The Order System of Vignola is very sinple and systematic. This is the reason why this book spread his idea all over the europe and other country. But it is the question how he had made his system, and what is the base of his system. So we must study from his descriptions on Roman architecture and analyse them. He tells us his sources of earch order, The Tuscan : Vitruvius, the Doric : Teatro di Mancello, the Ionic he says nothing, the Corinthian : Rotonda, Three columns in the Foro Romans, the Composito : he did'nt say clealy. At the first, we compared his cited source with its own, and the other case, we searched for his sources. And in this process we analyse his plates and find many things. Ceartainly, his cited sources are almost correspondent, but the proportions of details are changed. And we find the source of the Ionic : Vitruvius, the Corinthian : Arch of Titus and Septimus Severus.