This thesis report is a the Study of Architectural Design of Petchburi’s Artisan Works for a Conceptual Design of Pra-ubosoth and the Renovation of Thaocharoentham Temple in Petchburi Province. This study comprises of main reasons of building the temples in the ancient time as well as in Thailand and also to study on the space usage of the temples in order to enhance a better understanding of overall components and space usages of the temples. Including a study on the architectural development of Petchbuir’s artisan works in the late Ayuddhaya era period in order to gain more understanding on the reasons behind the architcctura development Petchburi’s artisan works. Furthermore this study aims to analyse Petchburi’s artisan works, to find out its pros and cons on their architectural designs in order to apply them to Thaocharoentham temple. Besides this study focus on the uniqueness of Petchburi’s artisan works in order to preserve its uniqueness in developing the architectural design at Thaocharoentham temple. In the Moreover, the studying of current problems occurred at Thaocharoentham temple, might be used as an information for solving the problems by concluding them in the form of a conceptual design.